I’m also wondering about your age, how serious a relationship this is, and a few other things. “Annoying” is an ambiguous term used by 12yos who know they don’t have a single good reason for excluding someone from their lunch table. Have you read any of the other MIL threads? Two weeks ago there was a lady on here whose MIL snuck into her home while she was out of town and painted it and was in the processes of insisting that she be allowed to choose their baby’s name! THAT is a real problem!
Is this lady actually causing a problem and if so, what is the nature of that problem? The way you describe it, it sounds like you just can’t be put upon to get to know her. Why do you think she doesn’t like you? What religion is the MIL, if any? Why can’t you cook or “anything”? Are you disabled? How do you procure food? I would also be a little concerned if my son was getting into a serious relationship with someone who couldn’t cook, “or anything”. Maybe show her that you are, in fact, able to take care of yourself and take care of a family? I think we need more information to really offer good ideas.