I can't remember if I replied earlier but my 2 cents:
I dance several dances. I danced when I was single, when I was newly in relationships, when I was in a mature committed relationship and when I was newly single.
For me, much of kizomba and sensual bachata is overly and overtly sexualised. Blues has headed down a similar path. However the people who dance these dances regularly do not find them to be so nor are they conducting hundreds of affairs. When I take classes or dance these dances I am 100% focused on learning new dance skills. (My body isolations still need a lot of work). And lets not forget that society is constantly changing and what was scandalous in the past is totally fine now. There was a time when exposed ankles were horrifying!
I do not put tango in the same category as I find it to be a sensual rather than sexual dance. I am a straight woman and generally prefer to dance the traditionally female role of follower. I can dance the other role and I do dance with other women.
If I was interested in an affair I'd download Tindr or another dating app and I'd probably find a suitable person in a week or less. I definitely wouldn't spend months learning a new dance to slowly get to know new people. I wouldn't spend hundreds on classes, workshops, shoes etc etc.