AITAH for not wanting to be a plus one to a wedding with my boyfriend?

hey!
I (24 female) and my boyfriend (26 male) have been in a relationship for 6 months. My partner is one of the groomsmen in his childhood best friend’s wedding (male friend). I was invited to be a guest which is super nice. the problem is… I don’t know any of the family and I don’t really like the soon to be wife. I’ve met her a handful of times and always noticed her vibe was off with me. I asked my partner if he noticed the same and he explained she gets jealous… even during simple conversations over card games getting to know each other. I was never alone with her fiancé and never flirty as I have my boyfriend lol. I hate confrontation so it doesn’t bother me the way she feels about me. I am also recently sober (2 weeks) and weddings are not the best place for a newly sober person, yes I know drinking is everywhere and hard to avoid, but my boyfriend will be drinking heavily as he is one of the groomsmen. it’s just an overall uncomfortable situation, I have tried to explain this to my boyfriend, he’s been my rock through sobriety but he really wants me to join. I just know he will be busy with groomsmen duties and I will be left so awkward! What should I do!? AITAH?