I've noticed whenever I introduce a friend of mine to someone else I know, it seems like it only does harm to me and my friendship with this person.  I am very insecure and people do not help or realize it either.  I introduce two friends to each other, and bam, they're best friend who fall in love and I feel like the third wheel being left out.  I introduce two college friends and bam, one tries to get closer to the other, more than I am (making me feel like my place is taken) and tries to see if a relationship can be started.  I know I cannot be in the way of others relations, but it pisses me off because it always ends up backfiring on me. I always result in anxiety attacks and thinking irrationally due to a sense of lost friendship, my place being taken, or uncomfortable being around two new love birds going through that 2 year "honeymoon phase". My breakdowns from it and not being comfrotable with speaking up to them are only more intolerable. And I get it, I am to blame for some of this because I have the power to speak up, even though I am too timid to.