MIL has just visited for the weekend. I had a lot of quite minor irritations, which I can deal with by having a quick rant with a friend and shrugging off, as she's always the same and seems unlikely to change. However, there's a bit of her behaviour that bothers me and I don't know what to do.
My DP is my DD's biological mother. MIL isn't homophobic in the typical sense (in fact DP is fairly sure she's bisexual herself), but since DD was small she has struggled with my role in DD's life. This visit, as usual, she referred to me as 'auntie' repeatedly (always making it out to be a slip-up, though I don't really believe it) and kept up a stream of low-level criticisms. At one point we ended up discussing my DP's sister, who's just separated from her husband and is working out arrangements for their son. MIL seems to believe her daughter gets to lay down the law and if her ex-husband doesn't like it, 'tough!' When DP left the room, MIL said to me that if we ever split up, 'I would have the baby'. I thought she meant she'd look after her, and although I thought it was a pretty nasty thing to say, I said yes, I'm sure you and my parents would both do lots for us. And she said no, she'd sue me (pointing her finger in my face) 'for custody' because the baby is her granddaughter.
There seems no point explaining to her this wouldn't happen, and that no one would ever give a grandmother custody over a perfectly functional parent, just because the grandmother is a biological relative. She's not big on explanations. And I didn't mention to my DP that she'd said it (though maybe I should).
But at what point do you think I should make a fuss about any of this? At the moment DD is nearly 2, and though she is a bit confused when MIL says 'auntie,' I doubt it matters much as she's equally confused by perfectly innocent things such as the fact my mum is 'granny' to her and 'mum' to me, or that her cousins have something called a 'daddy' who is also 'uncle So-and-So' to her. But at some point, it will start sinking in. And so will comments about suing for custody. Having heard MIL make similar comments to my SIL in the presence of her son (who is older), I don't think it's likely she will suddenly begin to self-censor.
Complicating this is the fact that my relationship with DP isn't wonderful (though I don't think MIL knows this, and certainly she doesn't know the extent of it), so separating is a real possibility. DP does quite often step in to correct some of MIL's comments, but I can't simply pretend we'll never split up.
I also don't even know what to say to MIL, if I did say anything.