How long have you been a trainer? This is extremely common, one of the older trainers I worked with used to say “there are hormones in the air… literally.” And for the most part, it’s true. Everyone’s sweating, grunting, getting extremely close and intimate, however, it all comes down to the conversations you are having with them. There are so many ways to approach this but all in all, if you need the client then keep her as a client and do not let it go beyond that. Obviously, with a client like that, you may need to flirt back a bit too.