Reunited - Cancer & Cancer

When I was 16, he was 18 we met while I was visiting relatives in Toronto, Canada (our families are good friends) - I was living in the Bahamas at the time. For a few weeks we had a sweet thing, no sex and I left to go back home. We stayed in contact by phone but he dropped the "L" word on me and mentioned marriage and it freaked me out. So I ended it with him telling him I wanted to focus on school. That was in the summer of 2000 and we never spoke or saw each other again.
I moved to toronto in 2001 a year later and went on with life, schooling, dating and working.
On New Yrs Eve (December 31, 2009) I met him after 10 yrs! Since we parted he got married (mostly becasue he got her pregnant and wanted to do the right thing- he said he wasn't ready for marriage at the time), and had a daughter. His wife cheated on him and they are in the final proess of a divorce. Even he told me he never got over me, and while he was with his wife he always wondered how it wud have been if he had married me. He said he never got over me breaking up with him.
I've learned that in the 10 yrs he has avoided any get-togethers where he knew i'd be just because it would hurt (he had no idea i was going to be at the new yrs party). Someone at the party told me that after he heard I was parking my car to come in, he got so nervous he couldn't sit still
He said things went downhill 2 yrs after his marriage, they barely talked and barely had sex. He says he's always loved me and now that he's finally met me again he wants us to get to know each other. His words were "I lost you once, I won't lose you again".
He told me he loves me and that he fell in love with me when we were teenagers. I remind him that we're much older now and probably different ppl than we were at 16 & 18. I told him I am different and that he needs to get to know me. In 14 days, we talked almost everyday and have seen each other alot. My feelings are growing for him. I care about him still and I can see myself with him, I am just afraid of getting hurt.
He always wants to spend time with me, I catch him staring at me alot, he's cuddly, he gets nervous around me sometimes. But it's like he's made his decision already, he seems so sure he wants to be with me.
I'm a cancer and I care about him but I'm more practical. How can he love me after just meeting me 14 days ago? Is he just infatuated now tht he's seen me again? I'm not worried about his ex just worried that he's not thinking just feeling...pls advise