You have to keep telling yourself that you're not hurt or jealous. If you tell yourself enough, you'll start to believe it, then you will eventually be able to get over the past.
Yes a guy can pretend to be jealous it just depends how easily he can cover it up for you to tell weather or not he is really jealous.
Erm im going to answer this question with another one. Why would you pretend to be jealous? If you really like this girl, im assuming its a girl i could be wrong, you wouldn't need to pretend to be jealous. And you don't need to show off, she'll like you for you not who you pretend to be.
Because they are afraid to get emotionally hurt.
pretend you are hurt by what he said to you
Make pretend to hurt yourself.
Pretend to like him so you don't hurt his feelings and make the best of it.
Well don't worry about it if she was the one for you she would like you. She might just pretend to like your friend to make you jealous
May be she wants to make you jealous. Or it might be she wants to hurt you.
Be truthful, ask! Or you could pretend you like someone else and see if she gets jealous.
Pretend that you don't really care about all of the things that make you jealous of them. If they say hey guess what I have this and I can do this just say, cool in a not interested tone and walk away with disinterest in the subject. This will make them mad because its like you have seen better.
always be cheerful and happy. don't show anyone that you are hurt but only to yourself. when you see the person who has hurt you, don't mind that person and just smile.
He is either showing you a sign that he moved on or he wants to make you jealous to hurt you. If you guys are staying friends and not away from each other then he wants to show you you two can be friends and that he moved on. If you guys were away and glares at you in a weird and mean kind of way that can be that he wanted to hurt you to make you jealous and hurt how you feel with your emotions to show that he is a jerk.