He told me after he dumped me he had depression and anxiety, I wish he told me when we were together so I could've been way more supportive. He keeps telling me that I should move on and that he doesn't like me anymore but how can someone's feelings change so quickly? I don't know what to do, I love him very much and don't want to give up just like that. What can I do to be more supportive? I've told him I'm there to talk to but he keeps closing up. Help?