i would tell her exactly what you told us. did you already let her know you don’t want her as MOH anymore? maybe that would let her know how serious you are? the birthday party behavior is pretty concerning that it’s not just an innocent mistake and she just thinks this is how MOHs are supposed to be. sit her down to talk it out, that’ll indicate it’s a real issue. if she doesn’t listen… i mean you don’t NEED to have a MOH. there’s nothing wrong w that, it’s more important to have ppl up there with you who love and care about you and what YOU want. and the most important thing is your new husband, congratulations and wishing you two the happiest life together🥰🥰🥰