[quote name='Len_derby' timestamp='1492799545' post='3283382']
Two things come into my mind.
Firstly, wanting to avoid the things needing discussion he's invited her to try and scupper it.
Alternatively, partners of either sex can get jealous and suspicious. Because it's a non-musical social event maybe he wasn't allowed to come without her.
[/quote]
A bassist in a band I replaced years ago was not trusted by his wife, he had to set up then wait in the car with her, then play the first set, wait in the car during the break, second set, pack up and go home at every gig! She didn't come in and watch them and some gigs would be private functions anyway, bonkers she was!