To think that it's a bit rude that the dad turned up to playdate instead of mum

[Zscalent]

I am a single mum and have a 5 year old DD, she has made friends with another little girl in her class. My daughter was begging me since the start of September to organise a playdate so I got talking to the mum at the school gates last week and invited her and her daughter over to ours for a playdate on Saturday.
Saturday afternoon the child turned up at my door with her dad who explained that his wife was unwell. I felt wildly uncomfortable sitting there with a strange man in my house (I had literally never met him before). He was a nice man, but due to a previous trauma I generally try to not be alone with men especially behind closed doors and I found the 2 hours to be unbearably awkward and triggering.
Of course this family wouldn't know that about me and there was certainly no ill intent from them. The kids had a great time so I guess that's all that mattered but I just feel like if the mum couldn't make it to the playdate the right thing to do would be to give me a heads up that her husband was attending instead (in which case I could have suggested rescheduling or moving the location to a soft play or somewhere more private).
Aibu?

OLD THREAD

I do understand that some 5 year olds can be very shy in new situations but once the children are settled together he could have suggested leaving then. If she still complained I would have cut the play date short if I was him (or even if I was mum. 2 hours is too long to impose your presence on another person in their home.
If I was you I think I would have invented an errand or emergency to get rid.
You are going to have to get used to dealing with dad's going forward though as many dad's are active father's in their children's lives and some are even solo parents.

Yes, I thi know I would have suddenly remembered something I had to go out for after an hour.

Children play and make noise. That leaves room for inappropriate discussion that may make a woman feel uncomfortable and threatened in her own home, particularly if she’s unwilling to risk a scene that might upset the children. I think you are being naive.

By sexually inappropriate I was referring to sexual assault not suggestive or inappropriate comments.

Yes, I understood that - but the point is that a strange man carries the risk of inappropriate sexual harassment even if falling short of actual physical assault - that isn’t a risk you really have to worry about with women guests.