I would be confused as well, it's extremely tough to read social situations. It's just a constant guessing game with no confirmation ever if I am wrong or right, just me being (possibly) over-analytical and feeling like I am being toyed with. In these situations I would separate (or isolate) myself a little, if they want to hang out they will ask me. Then I'll decide if I am too busy or not too busy (most likely too busy, f**k a party). Friends? Heh, more like acquaintances. The title of friendship is earned, friends are the people who have my full trust, meaning there is sufficient understanding, mutual acceptance/respect, and minimum guessing game.
Even without that friendship, I do great as a lone wolf for the most part (as long as I don't get caught up in negative thinking). Advantages are more freedom for me, more work on myself, no social obligations, less drama, less confusion.
Dealing with the confusion though, is damn near torment, and I'll distance myself from anyone who causes too much...