Do I (25m) continue being a groomsmen knowing that I’m insulted behind my back?

My friend “Paul” (26m) whom I’ve had a on/off friendship with since highschool, re-entered my life 5 years ago and we became good friends since that don’t talk so much. He was a groomsmen at my wedding 3 years ago. I was just told that I’m a groomsmen for his upcoming wedding. All is great for a week.

We all are participants in a playstation group voice chat, the groom, groomsmen, and others; that we all hop on and off throughout the day. One time, I enter the chat and a joke/statement is made that makes me feels unwanted and I ask if they’d rather I go; they told me it was unnecessary, and despite it being uncomfortable for a second, we moved on and continued to have a good chat. Two days later, my friend “Remy” (25m), tells me that he was in a chat with all of the party, without me, where they were insulting me for 3-5 minutes, saying that I was annoying and that they wouldn’t enter the chat if it was just myself there, etc.

The wedding is in 6 months; I was just told this information, so I’m not sure how to navigate. Given the scenario, I’m starting to feel that I was chosen as a groomsmen out of obligation for me having him as a groomsmen. I’m wondering if I should ask the groom about this, because if they’d prefer to have someone else over me for a more comfortable wedding party, I’m all for it. Remy would prefer that I don’t say anything about it as he thinks it’d bounce back at him for telling me. That being said, I’m at a loss of what to do. I’m not mad nor do I want to cause drama; I want the best for Paul, but if Paul and the others feel this way about me, I don’t want to drag the wedding party down by being there out of obligation. Any advice?

**tldr: groom and groomsmen insulted me behind my back, and if that’s how they feel, I want to give the option to replace me if that means a better wedding party for them, but I don’t know if I should even bring up that I heard this to the groom.**