Are your friends leaving you out of hanging out and doing thing cause you are single?

I am the last one in my group to find someone. Some of my friends are married and some are engaged, and some have been with someone for a couple years, and them there is me, still single. It seem as they are leaving me out of things and most of them are not exclusive couple stuff like fishing, drinking on a boat, going to Twins games, or the best is going to the bar. They tell me to get out and meet someone and when they go to the bar they don't call me.