Please help ever had this problem ?

My boyfriend is in the year above and all his friends that are girls are mega pretty and tall and he is like really close with all girls from different schools and they go out on weekends and stuff and im like younger alot smaller and i think im really ugly compared to them most of them are his ex girlfriends and also they always go out on the town drinking and stuff and i feel stupid because id rather get my pj's on and watch come dine with me i feel like he can do better than me