Need Advice on how to move forward/How to have the strength to move forward

Three years into this relationship.. It was amazing in the beginning, as it always is... Now the distance is starting to set in.. He continuously makes excuses that he can't make time to see me because his friend's want him to hang out with them. A few months ago, he came to me and said: "I think I may have a crush on another girl" He told me he felt this way because "she enjoys doing things that I like to do, things that I wish you would enjoy doing but you don't"... However when I prompted him with a break up. He told me he did not want to break up that he wanted to continue our relationship and move in with me someday.. Seems like he wants to have his cake and eat it to.. The same behavior has been continuing for the past few months.. Keeps wanting to reschedule plans because his friends want to hang out with him..... I don't know what to do... Every time I prompt him with a break up he says that's not what he wants... I just don't know what to do anymore.. Can someone please give me advice?