First let me say that whether you choose to put these feelings in a journal or not, they are welcome here! PC exists for this very purpose - so people can confide in and support each other.

Second, what he did is absolutely not ok, and you shouldn't feel like you are wrong for being upset. That said, is it possible he made a mistake? That seems unlikely to me, but maybe you should talk to him. Either way, if you tell him it upset you, he may be more careful not to hurt you or others like this in the future. However, I'm the kind of person who would have done the same thing as you - I would feel betrayed, unfriend him, and avoid him. There are some things that are so hurtful that "making up" may be impossible. I have lost a few friends this way but ultimately don't regret it because they were toxic friends anyway.

One last thing. Saw you're in Fort Collins - I'm in Denver. If you were a little closer I'd drag you to La Rumba! I love salsa. But alas, you're just a little too far away. If you're ever in Denver though, feel free to PM me.