<s>[INST] I have three friends who are in a polyamorous relationship with each other - a woman and two men. I've been close friends with them for about five years now, and I've been asked to be a part of their wedding ceremony. I'm honored to be asked, and I love them all, and I've been supportive of their relationship throughout the years.

However, I recently found out that my girlfriend has been really uncomfortable with the invitation, and the relationship dynamic in question. She feels uncomfortable with polyamory, and doesn't feel that she can "accept it." She's been asking me to either refuse the invitation, or to keep her away from meeting them, if I decide to still attend.

I want to be supportive of my partner, but at the same time, I don't want to give up on my friends and disrespect their wishes/love. I've tried talking to my girlfriend about the issue, and she has acknowledged that my friends' relationship may not be for everyone, and appreciated the fact that I've been respectful of the things that make her uncomfortable (she has some other reservations too).

However, when I pressed her about her feelings concerning polyamory, she said that while it might be okay for some people, it's not something she can abide or condone, and fell back to recounting times when we were at social gathering parties and there were couples involved in polyamorous relationships and she felt uncomfortable. When I asked her whether it's about jealousy or if there's some deeper issue, she said that maybe she just wants to be able to "show off" our relationship since she's proud of it and being around people in polyamorous relationships makes it seem like "those" relationships are the "norm." I've encouraged her to think critically about her feelings, but we still can't seem to find a way that makes her feel okay about it.

I want to take care of my girlfriend's feelings, but at the same time, I don't know how to proceed when my supporting my friends and accepting their relationship would create tension in my current relationship.

Have you got any advice?[/INST]