Without knowing too much more about the situation, there's two possible scenarios in my mind. A - He's the kind of guy who "collects" and like to keep in contact with the ladies he's had good times with and sees them as people and likes the continued contact flirt and chats. B - He's the kind of guy who needs a plan B (see what I did there), and these continued texts and chats are his way of ensuring the sex continues if anything happens between you. Speaking as a long time hobbyist, a man's need is never fully met by just one woman. We hobby because we crave variety. If it were just sex, well, the actual sensations of sex is pretty much the same no matter who you're with, but the variety ie, different colours and tastes and personalities, this is what make is hard for guys like us to be satisfied with just one woman. For your continued happiness, you need to ask yourself if you're ok with this and with the possibility that he might "cheat" on you with an escort or MPA, and if he does, up to what point are you ok with. For example, if he see's a MPA, there's no guarantee of sex and he could be indulging in the variety he craves but is saving the sex for you. I don't know about you, but I know most women would probably NOT be ok with their guy going to MPAs and seeing escorts, which is why most guys don't tell their SOs about the hobby. But, since you know, and you seem like a fairly open minded woman, you'll have to decide for yourself what the line is. Good luck!