It's the fate of the self-indulgent, at times. Sometimes just being an ear is okay and laudable, but sometimes it gets so that you can't tell if you're being used or not - you can't tell if that person's talking to you because you're important, or because you're the ear that just happens to be there.

I've gotten to a point in my life where I - personally - can't deal with people who do nothing but whinge and won't listen to what I suggest.

I can empathise with how you feel, I wish I had some good advice to offer.