Well, I Think you landed on your feet quite ok there. Clearly that guy has a LOT of maturing to do to be fit for any kind of comitted relationship.
While I don't agree completely with every sentence UIS wrote, the conclusion of his analysis is really sound advice. I myself think there is way too much reliance on suble hints and means of communication with hidden meaning and innuendos. For me, innuendos and hints can be fun for joking, but if something more than friendly banter is desired, clearly formulated unveiled communication is the way to go.
And don't hang up on conventions and social expectations when it comes to relationships. You and whoever you want is the ones that's going to live with eachother, so the only rules you need to stick to are the ones you make for yourselves, it makes things a lot easier than just accepting the 'common' definition. I'm polyamourous myself and only live in a monogamous relationship because neither me nor my partner has found another one to share our life with yet.
Happy hunting when the emotional bruises aren't hurting anymore