I feel like I'm missing something... They seem like pretty tame examples to end a friendship and dump somebody from bridesmaid duties. If they're the worst things she has done then at the very least you should give the friendship a chance to repair. Babies and weddings can do weird things to people. This week I've called DS several names and feral numerous times in his life, it can be tongue in cheek and maybe you're not in sync with her sense of humour.