Maybe you can go and just not tell her when you're going. Just say, Oh I already went, if she asks?? You know...my MIL went both times with me, as did my mom, MOH and SIL. I thought since she had very different taste, we would clash, but it was actually alot of fun. Maybe if you have friends with you so it's not one on one - - it might be o.k.?? Maybe not though.