Yep anytime I took the initiative, it was a one sided friendship and some people even saw that as a form of clinginess or not being able to take the hint. I have a very strong BS meter now, I listen to it way more than I used to. I did have those gut feelings a long time ago but I didn't listen to it, I would always write those feelings off as paranoia and learned the hard painful way like you did. That's why I no longer initiate contact, I don't sit in a corner at a social event acting all mopey but at the same time I'm not going to just go up to people and start talking to them until the approach me first.