I think the feelings you are having are pretty common around these parts! So, don't beat yourself up over them!
As far as the EX OW's STBXBF, I think asking him to leave you alone is perfectly appropriate. I know you are a very nice person, and it doesn't feel like you to do that, but do you need more bleck in you life? That's just my opinion, of course!
We like you, girl! And we have an alleged raft trip to plan! I can get from here to SAC for about the cost of gas on a plane, I hope those prices hold! Dates, we need dates! But, that should be allegedly talked about elsewhere!