MLM - going forward, have a think about what you are looking for. He said he was only interested in a friends with benefits kind of thing & you agreed to that. You agreed to that because you were afraid of being hurt - but actually you are hurt. His FWB was over very quickly and he's moved on & your are wondering what happened. It maybe that you are not cut out for that kind of set up.
I'm a big believer in being clear in my own mind about what I want - because if I don't really know what I want - how the hell will anyone else be able to work that out?!
I know that I want a relationship. I don't particularly want to get married again & I'm not even sure I want to live with someone - but I would like a mutually exclusive relationship. When I wanted loads of sex and assurance that I was an attractive woman as I came out of my awful divorce 7 years ago, I did the FWB thing, the one night stand thing, the sexting strangers thing. I was wild, reckless & up for pretty much anything. My approach is completely different now.
Have a think about what you want, what you really, really want - a bit of soul searching is no bad thing every now & then. Once you know what you want, then it will help you decide whether the blokes you are meeting might be able to meet some of your want criteria.
There endeth the lecture! 