met the most amazing guy, but we can’t be together

okay, I need to get this off my chest & any advise at all would be greatly appreciated! I met this guy who quite literally took my breath away. I know it sounds clique but I have literally never felt this way before. He's different than any guy I've ever dated, he's a true gentleman. We had the best conversations and literally talked for hours upon first meeting. I'm not even kidding its like the movies, were so similar & compatible. I know he feels the same way too, it was kind of shocking to both of us.

We both agreed even before meeting that we just wanted to have fun together this summer and not anything serious. I'm moving away for nursing school and he just got out of 3.5 year relationship. We were moving so fast so quickly (hanging out 3 times a week and talking nonstop).

Last week, he started to become distant, and I knew something was up. So I suggested that we break things off, he agreed and said he feels like he needs to work on himself before he can be with anyone else.

I know practically its for the best. I genuinely hope he works on himself & some of the mental health issues he deals with. He also is figuring out his work situation which I know can be stressful. He definitely has a lot on his plate.

But I literally CANNOT STOP THINKING ABOUT HIM. I'm having dreams about him & literally picture us being together. I am NOT a desperate person at all, but I feel like I'm going crazy!! This isn't normal behavior for me.

I 100% respect and understand that we can't be together, but something just feels unfinished to me. I blocked him on things after things didn't work out- because I really wanted to move on. and I figured out of sight, out of mind. It's definitely helped me in the past. But I texted him saying I'd like to be friends and he didn't respond, which I understand. I just really have no idea what to do in this situation because this whole thing is really distracting me and I cant seem to focus on the things I need to do. I don't want to have any regrets. I'm also scared I might have ruined a future with him by blocking him, but it was helpful for me at the time. Someone help.

TL;DR: Met someone amazing, broke things off. Cant stop thinking about him.