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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Was I wrong to have sex with his mate?

196 replies

rainbowdashsneeze · 20/03/2021 11:07

I have recently come out of a LTR, I was left with no warning or any kind of indication that we was unhappy. Anyway fast forward 2 weeks and I have been on a rollercoaster ride with ex partner he has gone from being madly in love with me to being cold and nasty and is totally rewriting history. Any way I have spent that past 2 weekends at my brothers house he has been amazing in helping me... well this week his best friend has messaged me a couple of times this week abs after a few too many beers last night I had sex with him. The sex was good sex! But my brother has absolutely gone off the scale mental at me? He doesn't want me back at the house, he doesn't want to speak to me he wasn't nothing to do with me because I have broke the code!!! He is also equally pissed if not more so with his best friend.

What do I do? AIBU did I break a code? I really don't know if I have done something mortally wrong or not. I just see it as a bit of fun with a friend I have knowing for 20+ years

OP posts:
notrub · 20/03/2021 12:29

Perhaps your brother is gay/bi and resents you coming between him and his friend?

ElevenSmiles · 20/03/2021 12:31

The brother probably feels he's being taken for a dick, you're off getting pissed happy shagging his best mate. He's tea and sympathy, bet he feels like a right mug.

rainbowdashsneeze · 20/03/2021 12:31

He doesn't actually no it happened. He has assumed as I went to his house drunk.

OP posts:
SilverRoe · 20/03/2021 12:32

I think when siblings have sex with other siblings friends it can sometimes lead to relationships which can then often lead to them becoming the siblings partner more than the friendship.

This can cause tension as it changes the dynamics of the existing friendship.

goldielockdown2 · 20/03/2021 12:33

I don't know if it's down to this or not, but the 'code' thing is so, so grim, misogynistic and objectifying.

Cloudyrainsham · 20/03/2021 12:33

It’s nothing to do with your brother if you’re both consenting adults but he’s entitled to feel a bit pissed off about it.

Zig4zag · 20/03/2021 12:33

Bit too incesty for me. Brothers mate would be too close to family.

Thewiseoneincognito · 20/03/2021 12:36

Ewww OP that’s grim. Grim for you and the mate, cringing at you both 🤢

JustJustWhy · 20/03/2021 12:36

@132orbust

Monica is that you? Stick with it, Chandler is a decent chap and Ross will get over it.

Very Samantha, Charlotte, Wesley and Lesley!

minniemoocher · 20/03/2021 12:36

We are in lockdown, I would be annoyed my relative broke the law

tonystarksrighthand · 20/03/2021 12:37

@HollowTalk

Does 'lockdown' actually mean anything to you?

YAWN

Figgygal · 20/03/2021 12:38

I’d not be happy either tbh
And I’m with others ........lockdown??

chipsandgin · 20/03/2021 12:39

It all sounds very immature - you don’t sound old enough to have had a long term relationship OP & whether or not you are teenager then this whole scenario is a bit cringeworthy. Which country are you in where all this social mixing is allowed!?

JustLyra · 20/03/2021 12:40

@rainbowdashsneeze

He doesn't actually no it happened. He has assumed as I went to his house drunk.
How can he have gone mental at you over it if he doesn’t know?

Does he mean the code about covid or you sleeping with his friend?

tinkywinkyshandbag · 20/03/2021 12:41

Sounds like an episode of Friends.

Mylovelyhorsee · 20/03/2021 12:41

Two Constantine adults had sex? I can’t see a problem. You’re not your brothers property. Good for you op!

BatshitCrazyWoman · 20/03/2021 12:42

@GreenBalaclava

There's no code about this. You've done nothing wrong and your brother is being a dick.
This.

(I have no siblings, in case that's relevant).

I bet if your brother had sex with your best friend, he'd not be happy if you were annoyed about it.

TheSparkleJar · 20/03/2021 12:43

You do sound like you've got your foot on the accelerator right now. Two weeks ago you and your ex were in love and now you're bonking your brother's best mate because he asked you round for a drink? It's a bit messy and a complication you probably don't need right now.

Just try apologizing to your brother, tell him your head's messed up. And leave the nest mate alone at least till you've left your brothers house.

JustLyra · 20/03/2021 12:43

I bet if your brother had sex with your best friend, he'd not be happy if you were annoyed about it.

I bet if the best friend was 2 weeks after having her life turned upside down and drunk the Op would be annoyed about it.

MrsTophamHat · 20/03/2021 12:45

@dottiedodah

Well I used to go out with my friends Brother! Is this not the same sort of thing? Never heard of this code TBH!
I think it's a bit different if they had genuine feelings for each other that became apparent over a period of time. But it sounds like just a one night stand, so I would wonder if it was worth it for the potential fallout. Of course one night stands can be just that and everyone moves on, but sometimes feelings get hurt as well.

The brother is right to be annoyed about the risk to his relationships with both of you, just for the sake of a one night stand.

WorraLiberty · 20/03/2021 12:46

@rainbowdashsneeze

He doesn't actually no it happened. He has assumed as I went to his house drunk.
Nah I'm not buying it

His mate has clearly told him for him to react like that

Branleuse · 20/03/2021 12:50

your brother is being over the top, but also, its definitely a thing that your mate doesnt shag your sister

YukoandHiro · 20/03/2021 12:52

How old are you all? I'm guessing early 20s. Otherwise it's all very childish. Unless of course his friend is a notorious shagger and he's worried that you're going to get hurt. In which case he should be angry with him, not you.

malificent7 · 20/03/2021 12:54

Sounds like Bridgerton to me!

pabloescobarselasticband · 20/03/2021 12:55

Your brother probably knows full well what his friend is really like and is worried you will get hurt again. You have put him in a very awkward position as well.

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