Seeing my part

I’m starting to realize that my jokes affect people at work and that I have a part in the treatment that I am getting from them. I don’t know when it started but a group of coworkers that are all friends seem to be against me. But since I’ve been back from a week long vacation they’ve been cool until I started making what I thought were small jokes. I could see them change, and start acting different too me. I was doing it to protect myself from them at first, like a strike first defense and they were reacting and In turn being rude to me. If I stop making jokes at their expense I think I might be able to improve relations at work and that would be great. This group has been a big stressor in my life, if I can change this than I will be so much happier.