Can I ask how others would feel about this situation? I have a 3 yo and 9m old. My SIL (husbands sister) has been in an on/off relationship for about 2 years now - more off than on I’d say and last we were aware it was off, but now apparently back on.
Just to add, this is her first same sex relationship, and when they’ve had bust ups, SIL has confided in us all the dramas and how this person is an alcoholic, narcissistic, gets with other women behind her back then calls her up to tell her laughing about it, just being a downright nasty person. Obviously 2 sides to every story but this is what we’re hearing.
She’s been to our house with SIL a couple of times which I wasn’t really keen on tbf but was just trying to be reasonable, and every time she has been here she’s made a really over the top effort with my 3 year old, if you can imagine what I mean

to the point it’s cringey.
Now my issues is, my SIL is messaging me asking if they can take my son out for the day together? SIL hasn’t ever really taken him out on her own himself to be honest so not sure why the sudden interest. I can’t really explain why but I’m just not comfortable with it? But I feel like if I say no I’ll just be made out to be awkward? I’m always moaning I don’t have any help

but this just doesn’t seem genuine to me.
I get the feeling cos they’ve just got back together they’re gonna use my son to try and have some weird family day out? Or am I just being childish I dunno?