<human>: Can you summarize the given text in a few sentences?

Ok, Straight to the point:

I (23/F) was seeing a guy (29,M, Mike, for the purpose of this story) for a while when he moved out of state and we left things unfinished. One of his co-workers (let's call him Josh, 26, M)) and I became friends on facebook, though not much communication was ever established other than a usual "How are you?"

Well, Mike ended up moving back here, and calling and chatting me up every day again, though nothing ever really became official. We were just the couple that hung out all the time, and had sex but were never boyfriend and girlfriend, not because I didn't want to, but because he didn't. Mike and Josh became best friends, they work together (to this day), and we always hung out together. Well, things finally went awry with Mike and we stopped talking. It's been a solid 6 months since I've heard from him. I thought they were a package so I didn't even bother keeping contact with Josh. 

However, Josh messaged me of facebook more frequently over the last couple of months, asking me how I am, really interested in what I'm doing, that sort of thing. Eventually he asked for my number and started texting me about 3-4 times a week for hours at a time. Finally last weekend he asked me out for coffee and I accepted. He came to my side of town (he lives 45 min away) We had a nice time, sat around and talked, drove for a little while, played arcade games, sat around some more. Lots of laughter, getting to know each other, and flirting all throughout this time. Finally, at the end of the night, things got heated and we made out for a while, though nothing went past 2nd base. Then at the end of the night he walked me to my car and kissed me goodbye. 

I texted him the next day to say thank you for the previous night, and then he texted me on Monday to ask how I was doing and kept up conversation. I definitely felt a connection, but I'm wondering if this is a bad idea because of my history with Mike and them being best friends, and how do I know he is genuinely interested and not just playing mind games with me?
<bot>: had friend with benefits who introduced me to best friend. friend with benefits and I are not friends at all anymore, but best friend is showing sudden interest in me. why?