my friend didn't invite me out and went to other friend?

Your friendship will be ok they might just have things to do that may not include you . I sometime get new friend and I try to cement my new friendship and also get to know that person before letting my old friends know that person. Just be a good friend because they will not leave you.

Tell him what's wrong. Maybe he wanted to have a new friend and want to get rid of you. Maybe you two should talk to resolve the issue.

I think we might hurt friends not on purpose but when are doing things meaning to get back at you think about it, they don't deserve you and they are not being a friend. My only advice would be talk to him, I always did trying to fix but if it's their way or no way I'm better off without this so callled 'friend'.

Give him some time he might got tired of hanging out with you.Most of the guys do the same after they hang out with one person all the time they feel bored and leave his company for another friend they'll get but eventually they will come back(if they are TRUE friends)meanwhile try to find a buddie too and let him think about It! Friends are friends and they never forget each other thats what I've learned from my childhood!So now the only thing you can do is to wait for him to comeback!