Ex's girlfriend at my house acting odd

[TheSilentSister]

So, for context, I still live in the marital home and ex divides his time between another country (where his g/f lives) and here. He's currently here and his g/f has come over (agreed by me). She's acting all weird. We've met and she's stayed here before. I'm wondering whether it's because I've lost weight and actually look younger than her now or if there's other reasons. It's so odd. They've been together for 6 yrs and the last time she was here I was quite a bit overweight.
I won't say I'm bending over backwards but I'm being incredibly civil given the circumstances. Ex is running around like a headless chicken.

She’s been with him 6 years but you still live together part time?

Woman deserves a medal.

You need to define "odd".

Weird indeed!!!

Eww! Do you have kids in the house?

For context - I don't want this at all, I hate it. I have no choice and he exploits my good nature.

That sounds like a really awkward, difficult situation. I wouldn't like it.

Name change fail OP - Busted! I nearly fell for it.

He owns half the house. Hasn't been abusive. I have no grounds to kick him out. She is a nice person, I have no beef with her. Ex has had to put up with my b/f.
Yes, it's a living hell.

Think you have had a name change fail there OP.
However, on the actual AIBU, why do they get to stay with you? Your relationship with the Ex has been over for years so shouldn’t they be making their own arrangements?

Why haven’t you divorced and sold the house?

Why the name change fail comments? This is my situation.

Can't you sell the house and go your separate ways?
Surely it would be better than your current arrangement!!

Because you originally posted using a different user name and you are now posting using a different name which makes it confusing.

In what way is she being weird?

You're not the OP or you name changed and then changed back by accident

Maybe because the OP name was SilentSister and you're posting as Walkingalot within the post.

On a side note, how is it possible to accidentally name change now? It automatically switches to whatever name you used when first posting.
Unless you are not the original poster @Walkingalot ?

I’ve notice name fails a few times recently - I thought it wasn’t meant to be possible anymore?

Ah, I get it. I was on my computer and now I'm on my phone. Yes I have different names.

Jesus wept. A genuine problem and zero. Well, that's me out.

What???? You only posted an hour ago!

Also, what is the AIBU here? You seem to be staying facts, not asking a question

So did I. Bloody irritating.

OP she's probably a bit surprised you're still living together. It's weird.

It's time to divorce and sell the house so you can go your seperate ways.

What’s your AIBU question OP? And why are you putting up with this? Why are you also being aggy with other posters?

I'd be weird with you as well, I'd feel really awkward coming to that house, still living together after 6 years is just ridiculous.
I doubt it's your weight loss and the fact you say you now look younger than her lol

What's your question?