My BIL (well me and DP aren't actually married yet but engaged and have baby - been together 8 years) annoys me so much. He is very nearly 30 and has never had a job. He finished a very indulgent postgrad course a year ago and has done nothing since. He lives with his mum who does everything for him and waits on him.
Here are some examples of stuff he does (sorry this is long):
Invites himself to stay at our house (we have a baby and has done this fairly regularly since baby was born) He offers no help and expects to be waited on. E.g. If we have been to supermarket to buy food for his ridiculous dietary restrictions, he won't even offer to help bring stuff in from the car, he will just go straight in our house and start watching tv. He is not interested in his nephew but is incredibly close with my DP.
He has extreme (self inflicted) dietary requirements and expects us to accommodate this (ie me to cook a totally separate meal for him and buy the random crap he eats).
When he stays over, when DP goes to work he will hang around all day sitting in our living room playing the PlayStation. I am stuck with baby with nowhere to play as I don't particularly want baby to watch these games he plays on tv. he huffs if baby cries or if I stand in the way of the TV. He just doesn't get that he can't sit in another persons living room and dominate it. He doesn't get hints to leave. I usually have to make up an excuse that I need him to leave (last time I had guests coming over and we would need living room - he said he didn't mind people coming over and carried on playing PlayStation...well I'm glad he doesn't mind me having guests in my own F-ing home!!)
Oh and he doesn't like me breastfeeding as it is "gross", and made me feel so uncomfortable I went upstairs in my own home to BF (I don't anymore as I actually want to make him feel uncomfortable so he gets the feck out of my house).
He invites himself along to things and just expects us to pay for him. For example a few weeks ago we were taking baby to sealife centre and he decided that he would join us (uninvited). We later went for quite an expensive dinner (because he likes that restaurant) and he just expected us to pay for him (for the meal and for the sealife centre and for the dinner - that day we spent close to £100 on him). Oh and he doesn't hold back on what he orders. He orders stuff, tries it and then will say that it is "gross" and then will leave it (he did this with a £12 cocktail and a pudding on the sealife centre day) He NEVER says thank you. I always make a big show of thanking DP in from of him to try and hint that BIL should also say thanks. He does this every time we are with him. I know he has money as MIL and FIL have both told me they still give him pocket money..
He behaves like a child but he is less than 2 years younger than me.
I have asked if he has some form of autism- but DP and MIL both said this had been investigated numerous times and he doesn't. I was shocked about this as for years I have put his behaviour down to this in my head.
I have spoken to DP about it and he just says something like "that's just him". DP is quite protective over him as he was quite bullied at school - and I understand that but his behaviour in my mind is totally unacceptable and he needs to be told so. AIBU?
What can I do? I really worry about baby growing up seeing an adult behaving like this.