The fact that my friend has a good social life really makes me unhappy.
Really? Why does your friend's social life upset you?
I feel uneasy about it because I also want to have a social life
It's not nice to try and stop friends from socializing with others. You should try to stop being so jealous of others.
He's always talking about his ex and shows off his picture with her. It makes me jealous that I can't find a girl like his ex.
If you wish you had a social life like your friend's, maybe you should stop being jealous of him and ask him for some tips on how to socialize better. Since he seems to make the kind of friends and girlfriends that you'd like to have, maybe you can use his pointers to improve your life instead of being jealous and unhappy.