Is he the love of my life?

Let me start with this that I'm 27y old. I never had a relationship for more than 7-8 months and I"m not ugly or anything like that. As a matter of fact I have attention from lots of men but whenever I go on a date with someone I just find something that I really can't stand so I decided to not go further. A week and a half ago I broke up with my bf wchich i loved so much, we were talking about getting married, having kids. He loves me so much, but at one point I realize I can't see a future with him because he was in jail few times, and last year when we stared dating he was looking for job, but he's not educated or anything like that so he didnt have a stable job. On the other side I could see how irresponsible he's with his finances. He was living with his parents, his mom was buying him cigarettes and clothes. And he just turned 28. I left him and we didnt talk to each other already for 2 dayss. He was trying to get back with me and he was willing to do anyting for me. I am the love of his life , but he was so jelous that I couldnt stand the fact he ty to limit my contacts to people. So we were dating for about 7 months, shared so many memories together. I felt the most special person when I was with him. Now its over and I'm devastated. I'm wondering if I lost the love of my life...I think about him day and night.. He always told me everything will be ok, but I just couldnt see it cuz he was so irresponsible... What shoud I do?