She will insist I go though and her grandparents love me. They even call me over to play cards with them and I graduated college with her and her grandparents found me in the crowd of 4,000 graduates and told me to come over! I mean I don't want her to hate me for not going but I really don't want to go...damn qualms.
I believe honesty is the best policy. Tell her like it is. And then if she hates you for it, then it's on her, but who knows, maybe she was waiting for someone to tell her the truth.
"You know I've known you for so long, and your grandparents have been great to me. But this guy is trash, Meg (she sounds like a Christina, but I'm going to go with Meg), I don't think you should marry him. I can't stand him. And I'm sorry, but I just don't want to be there. I wish you both the best, but please understand: This will be more of a chore than a wedding."
She will say:
-"You're just jealous. You want me, you've always wanted me. And now you're just jealous that Jake (he sounds like a Todd, but I'm goin with Jake), and I are getting married. Fine! Don't come!"
or
-"I understand. I'm glad you feel open enough with me to share and be so honest. A lot of people have doubts about him. But he makes me happy. Don't worry about it, I'll tell my grandparents you're busy.
"
or
-"....okay? Whatever. I didn't even invite you my parents suggested it. We'll get coffee sometime."
or
-"Oh my god, Harry(You seem like a Tim, but I'm going with Hank...er..Harry)!!! No one would say it, but that's exactly what I've been feeling too!! Thank you thank you thank you, for being so honest! This guy is trash, but I was affraid that I couldn't find any better. And like how you've moved on and done things with your life. I just...I--*she cries, you consul her*"
Not exactly like that...but similar.