There is no right and wrong when it comes to relationships and it just might be a matter of where you are in your life right now. Often people want others to choose the same life choices that they have made to make them feel better about their choices. It could also be that they are happy in their relationships and just want you to be happy like they are too not understanding that you are happy single because they might never have been.
Make sure you reassure them that it’s great to be in a relationship but that you do love being single. Don’t allow anyone to make you feel bad for the difference in your life. You might need to discuss how you feel with them and if the ill feelings continue, it could also be time not to spend as much time with this group.
If you do feel bad about your life after a catch up, think about all the amazing things that you can do single that you can’t do in a relationship. Remind yourself of the things that they could be jealous about due to their current relationship status. Being single doesn’t suck so don’t let anyone make you feel that way.