I've definitely been there before and for the most part it did suck.

Right now I'm dealing with being the only friend who doesn't have a douche for a bf/fiance and isn't having major relationship issues. Obviously I'm not jealous, but it still sucks because it's getting to a point where they won't even talk to me about what they're going through because I can't relate to it and I've already given all the advice I can...none of which they've taken (which I swear is why they've all been in/have gone back to these super sucky relationships). I keep finding out that they're all talking and going out and doing things without me because all they think/talk about is their issues and they can all relate to each other so they don't even bother inviting/talking to me anymore. It sucks and definitely hurts.