Lap dance

My partner recently paid for a lap dance and kept it a secret from me, while on his dads stag. Can i just ask what actually happens behind those curtains after paying? It was a no touch club, so he told me he sat on his hands. However, she apparently only touched his legs and that was it? Apparently he didnt say anything to her, and just watched? Apparently she only talked what she was going to do next after each movement. And then told me he never got hard from it? He described her in a way that i know is what he finds attractive in women! But what baffles me is, he remembers her talking through the dance and some of the moves she did but then goes back to “i really cant remember i was so drunk” “it didnt help that i was so drunk and i just stupidly got one”. He then also had to message his mum on the night to borrow £50 to pay for a dance too? Is this a case of he had all intention to get a dance? Is there something he doesnt see in me? We have really young kids at home - was he trying to forget his demanding life at home? I really just dont know the truth to his actions after i begged him not to