In a situation like this, it's awkward at first. As strange as it sounds, you dumped him (good job!!) and they may feel like they have to console him for now. They probably feel like they are caught in the middle (not your fault at all!!). You never know, maybe he was stalking them too, or ambushed them into dinner (sounds like the type) and they couldn't get rid of him. Give it time.
One thing I've learned is true friends will be there in the end. I'm not saying they aren't true friends, it may just take a day or two of adjusting to the new situation. Or, they may not be true friends and in that case you don't need them. Easy to say, I know, but it's the truth.
Hang in there sweetie.
I'm sorry you are feeling hurt, Sarah.
I don't blame you, your feelings are natural and normal. But a little hurt from people who may or may not be friends who really care is better than what would be in store for you if you'd stayed with that guy.
Now...you know what he's capable of so it's very likely that he has given them some totally imaginary version of what has happened between the two of you.
Perhaps along the lines of "all I ever wanted to do was love her, but she's so worried about what people think" or "it's obvious she thinks she's too good for all of us". or "she's such a #^@&!^@ $!^*, don't believe a word she says"
Hugs, dear. Time will pass, it will get better, but the most important thing is you are safe and free. And get yourself checked for diseases soon, okay?