Search Results: dated two girls at once

There's this guy I met in high school who had a crush on me, I rejected/friendzoned him. He switched high school and I haven't met him until recently.
After catching up he confessed that even after these 4 years he still keeps comparing girls to me and just can't get over his feelings. He also has sunk deeper into drugs (I rejected him at the time because I'll never date someone who smokes).
I have feelings for someone else so I'm not attracted to him however, I still care as a an old friend because I know about hardships he went through.
I told him the only way for him to have me consider dating him would be quitting drugs, he answered "if that's all it takes please just wait for me".
It has been two month since our talk and I now learned by a mutual friend that he switched to soft drugs only (Idk what that means but he stopped coke).
To me I'm being a motivation for him to help himself and once he gets healthier he'll hopefully stop living in the past and give a chance to another girl as he's a really good guy.

What do you think, was this a bad idea from my part?

I served time in juvie center from 2010-2016. Then from 2016-18 I was under additional supervision and still seeing shrinks. By now I'm trying to be a better person but my criminal past is going to limit the dating pool that's for sure. I do feel remorse for my actions.

For those wondering what it was, what I'm about to write is a strong content. It's very bad.

2010:
- My friend and I set fire to a car. Our ages were 11 and 10. I was the younger girl and the meaner one.
- We took two 1st graders (lying to them about taking them to the fair with their parents) and once we got to an isolated location, started beating them and placed them on a huge garbage bin with crawlies. There was some more to it than just a beating but won't say it. Both were taken to the hospital and one almost suffocated because he had asthma.

For several months, I would spy on my neighbor and his two dogs. Then just a week before those events, my neighbor let me take his dogs (a Shepherd and a Lab that trusted me) for a walk. I did and fed them. Upon serving their bowls, I whispered to them ''sweet dreams''. It was poison, followed by an injection. The old man (he was in his 60's then) was devastated and I hid in a corner, laughing. He found out right on the following week. He went after my mother and reported it.