Search Results: different after sex

I went out with this girl twice a few months ago and we went out several times, and it went well. But she wasn't sure how she felt about being in a relationship and she stopped talking to me.

It's been 4 months and we started talking and went out last night. She explained she was seeing someone else and got into a relationship with him, and he got her addicted to cocaine and some other drugs and she cut off everyone because of how controlling he was.
She spent s month in the hospital after they broke up because of the drugs and she got off them, but moved in with a girl and they had a fling that went sideways.
She moved home and has been working on herself and she said that it meant a lot to her I was checking on her, she did really like me. But she wants to be friends and even friends with benefits for a bit so she can find herself and get right. But she said I'm very different from the people she has dated.
I don't drink or do drugs or have ever done that. She has mainly stuck to smoking cigarettes and drinking, but she wanted to quit smoking but uses it to replace the drugs.
I mean, I do really like her. She's 19 and I'm 23 so there's a huge maturity difference. But she said she likes how different and better she feels with me.
But during her drug phase, she had sex with her friends a lot, and that further concerns me. She is a genuinely good person, but her wild side gets the best of her.

I'm not sure what to do. We went out last night, and it went well. She liked being with me, but at times she was glued to her phone.
But she wants to get together tonight and as much as possible next week because she has the week off.
I'm conflicted.

I went out with this girl I worked with a few times, but stopped seeing her primarily because I need more time to move in from my ex. But I soon found out she still lived with her ex boyfriend, so major red flag.
Anyway, she came and left from the workplace over the next year, and she tried to be friendly with me again once she broke up again with her ex. But I got back together with my ex.
After a while, my girlfriend and I were about to breakup as she was Mormon and about to do a mission and I wasn't Mormon. Then the co-worker messaged me wanting to have sex again before she left to move to a different state.
I refused because I still hoped my relationship would survive. But after a month we were done. I talked to the co-worker for a while until she started going to the Mormon church too, and tried to convert me.
It's been two years, and I since rejoined social media and over the past year, my coworker never came up. I used a different email and everything.

But a few days ago, she came up as a friend suggestion with no mutual friends or anything. She even was the first result if I typed in 'm'.
After a few days she wasn't there anymore. But I'm not blocked.

Does this mean she's now checking up on me?