<human>: Could you distill the essence of the text into 1-3 sentences?

I had a FWB for about nine months but then he ended it because he found someone else. I was devastated because I had grown attached and had developed true feelings. After that I got into a sort of rebound relationship with a close friend of mine. However, I don't like my friend and I feel miserable in the relationship we're in.

It's not even a true relationship.... he just uses me for the sex and I don't like it but I'm scared of cutting it off because I don't want to ruin the friendship that we have. 

The thing is that my ex FWB recently contacted me and wants to continue with me.... and I want to go back to him, too. I truly like him and I want to end my "relationship." 

My FWB says it's fine if I want to continue with my lover and that I don't have to talk to him (FWB) if I don't want to... that it can be just sex. But I do want to talk to him. I want to start texting him and start conversations. What doni do about my "boyfriend" and how do I talk to my FWB without seeming clingy?
<bot>: ex fwb came back but I have a boyfriend that I don't like and I want to continue with my fwb because I like him