<human>: My bf (26) moved to another city and doesn't know anyone there. He wants to take dancing classes and is now looking for a new partner via sites like okcupid and pof. He has had sex with his previous tango partner even though he was not attracted to her at all, he says. (we weren't officially in a relationship back then and this was 1 year ago. I only found out about this a couple of weeks ago.)

I (25) am not only asking advice for my situation in particular, I would like to know if you would feel comfortable. Am I the problem here?

Give me the gist of the text in a nutshell
<bot>: bf is gonna take tango classes. He is looking for a dance partner on okcupid, because he doesnt know anyone in the city. Is this okay?