Confused

I think I’m in love with a man who doesn’t feel the same. He’s super busy (started two businesses this year) all the time he will make time for me. But sometimes I feel like I could be anybody. He doesn’t make me feel like I’m the one. He’s had a lot going on this year even loss a child. So I’m trying to be understanding but I don’t wanna play myself and find out later that he’s just over this. I did talk to him because I wanted to know if he actually wanted me in his life or if I’m just convenient. Obviously I’m around because I want to be even with all the changes I understand relationships go through ups and Downs and given his recent trials I don’t mind this down as long as there’s a future. I’ve been cool until he said he didn’t want his family to think we were in a serious relationship. I’m so mad at myself because I don’t know what to do I still want him but I don’t wanna be a Nikki Parker. He helped me find a house because my current lease is up. He’s paying my security, paying for movers and is going to take my bed and dining room table apart himself. I’m upset because this has been a serious relationship so I don’t understand the comment especially with everything that we’ve been through together. And given my current state of mind. I guess I’m probably just like a space holder. Or maybe because of his loss he’s trying to create space I know that was a different kind of pain. We’ve been dating for about 3 years now. Everything was good until he lost one of his jobs and then he started his business then lost his son. So I don’t mind being patient but I know there has to be limited just don’t know what my limit is. We also have amazing sex we have a great time together. Maybe this was just supposed to be a fling and I’m just too emotionally involved. I need help advice, criticism, similar stories whatever you have for me.