Most Helpful Girl
If he doesn't respect you enough to give you a FULL answer as to why he's breaking up with you instead of just calling you immature, then he's not worth your time anymore. I know it's hard after being with someone for a year and a half, but you need to go out and try living your life without him. At the worst, he will recognize that you can get along just fine without him and that may prompt him to reconsider/change his ways so that he can get you back. And if you really feel like you need to call him for closure, do it, but don't expect a full answer if he wouldn't give you one in the first place. Good luck!