A few of her friends, including me, think that she’s jumping into a relationship/marriage with him too quickly because it’s a pattern behavior for her.

I don’t feel like she would be open to a conversation about my concerns, nor do I honestly care to have said conversation. At this point, I’d rather just let the friendship fizzle. However, it’s a bit difficult in that I’m in a friend group (and group text) where the others don’t want to rock the boat,