Funny, how he waited until after the massage, to tell you that... Sorry I call complete BS. He was just using a convenient excuse. Good on you for calling him out on the the lack of sensuality and the payment he would have accepted had you not said anything.
Maybe he's engaged, that's great, but he's still advertising sensual massage and still has highly suggestive photos on his profile... My thoughts are his happy endings are YMMV, and his soon to be hubby may or may not be aware of it... I'm leaning towards very aware, and he's cool with it.