My Boyfriend Dumped Me After He BecameRich.......Please, What Should I do?

I dated a guy for a year and last year he broke up with me,
saying he wants to get baptized.

I was shocked and
heartbroken when he said that to me, because this was a guy
I suffered with when he had nothing. I was there for him. I
loved this guy to pieces before he became rich.
It's been about 5 months since we separated. In those
months I missed him so much, was really thinking that he
would call me and tell me that he wants me back. My
birthday passed, no call from him so I gave up hope of him
ever coming back to me or we just being friends.
I was shocked when he called me Dec 20th and was like ''I'm
sorry I forgot your birthday. My conscience has been judging
me for not calling you.''. I said no problem it's okay. Since
that day, he hasn't called.
Not until this week, he called and said he wants to see me,
that he's very ill, that there's no one to take care of him. I
told him I was not coming. He kept on disturbing me so I
decided to go see him...
When I got to his place I found out that he wasn't really sick
like he said. So we got talking. He told me he wants me back,
that my type is rare, that he has tried searching for someone
like me but to no avail. He kept on apologizing to me and said
that he has changed. That he knows he made a mistake, that
he's only human.To cut the long story short, he said he
wants us back together. He wants us to plan our future as
one again. Before I left his place I made it clear to him that I
am never going back to him.
The thing I don't understand is that whenever I pray for a
better person, it's him I see in my dreams. If I don't see him
in my dreams, he calls my phone. I'm confused, even though
my heart still wants him back, I don't know what to do.
Some of my friends have told me not to go back to him and
some say if you still love him go back but give him a tough
time. I forgot to mention - this guy still holds on to a love
note I wrote him while we were still together. He showed it to
me when I went to see him. I was surprised thinking he has
long torn it.
Please I need your advice and opinions. Thanks.