Has anyone had to face this problem? My MIL is referring to herself as mummy when talking to my DD (1 year old) or has referred to my DP as my DD's brother, or to my SIL as DD's sister, basically like the baby is hers. This happens only sometimes, not most of the time (obviously!), but it is getting on my nerves and it is causing me a lot of pain and anxiety. Even when it has happened a handful of times, it has been like someone was stabbing me each time, I was fuming.
I corrected her a couple of times, but she didn't seem to give it much importance. Once we were with some visitors at home and my DD was in someone's lap, my MIL stood up and said "come with mummy" and then when she kept her I told her "oh, I thought you were going to pass her to me, because you said come with mummy and I am mummy", she just laughed (not sure if a nervous laugh or just because it is something not important in her eyes).
My DP talked to her about this and in the last visit she improved a bit (I say a bit because there are other issues) and she didn't say it even once, but now she has been visiting for the last week (she lives in another country) and she has said twice, even though she realized while she was saying it and corrected it and changed to granny quickly. Still makes me feel so uncomfortable and it also makes me sad because it is affecting so much the way I see her, I just cannot have a good relationship with her like this.
Has anyone had a similar experience and how do you deal with it?
I am not the most assertive person in the world and that makes things even more difficult.