Anyone think Ploy's being just a tad too obvious for her own good? Especially since Mew clearly knows a thing or two about her ex's character--I'd bet chocolate that she's either cheated on Mew, lied to her seriously or both in the past.
I mean seriously, I can imagine taking someone in, in a situation like that. But when they start putting on the BS moves . . . by the time she got into that "haven't slept with her" biz I'd be saying "Shut. Up. She's none of your business. The one thing that is your business is, I'm committed to her so if you want help you can just goddamn well turn your usual gameplaying OFF. If I hear one more clever word or move out of you, we'll call up some of Donut's friends and see if you can stay the night with them, and if they say no you're out in the cold on your ass. Copy?"