A man who had once hosted me for a Shabbos meal approached me on Sunday and invited me for Friday night. I accepted.
This morning, after shul, he came over to me on the street, said that he hadn't known how to contact me since he didn't have my number, but that he had to withdraw his invitation for tonight because his wife had invited a single woman, and either the woman and/or the hosts wouldn't be comfortable having us both over at the same time.
He asked me if that was a problem. No, why would eating alone on a Friday night be a problem?
I can see someone canceling because his wife went into labor, but canceling because someone is afraid to have two single people in the same room is complete and utter nonsense.
There's no way I'll ever accept another invitation from this guy again.

having guests anyway,etc. and don't mind, that would be great' or something similar.
