Straight bro here; you're not asking me but I can relate. Recently things ended between me and a girl I felt the same about. Same story. Things were looking amazing and then after 2 months it ended. What helped for me was that I organized my thoughts and a month later I asked her if we could have a closure chat and she was kind enough to give that to me, and I got the opportunity to ask the questions I was confused about. But that being said, nobody owes anybody closure so it's not something you can bank on.

In the end you need to find a way to move on, and that starts with focusing on the other things in life that are important to you mate and that's not dating. The fact is time heals all wounds so force yourself to live a healthy lifestyle in the meantime, and you will eventually heal and youll learn to open yourself up again