I miss my ex fiancee

I was engaged to this guy that I met online and spoke to for a while. He seemed really nice and religious and I really liked him, so only after two meetings we got engaged. However, after the engagement things just went downhill, we were not getting along. He always misunderstood what I said. Also, I was having some trust issues so our families broke off the engagement,. I am having a really hard time getting over him. I thought if I found someone else it would help, however, its not really hard to find someone else and when someone came to my house to see me, all I could think of was my ex fiancee. I did not even want to speak to this other proposal, in fact it made me miss my ex more, that I realized I cant get him out of my mind and seeing someone else depresses me more. So Ive decided not to focus on my marriage anymore, cuz its only making me miss him more and its depressing me more. I really like him and really want to be with him. I havent spoken to him since we said our final goodbyes, hes gone to hajj right now, but I really miss him and really want him back. Ive made a big mistake by listening to others and not trusting him. I need advice. I am miserable without him.