Didn't he buy Megan some DVD's and anime VHS tapes, along with 80s MLP shit too?
I suppose if they were hanging out at the same hobby shop, she probably figured it was easier to just be friendly to civil with Chris until he started being super creepy and making porn of her. I don't blame Megan in the least for cutting him loose, and if I was her, I would have washed my hands of him when he started getting touchy-feely.
Megan did never go to Chris' folks' place. I wonder if she just didn't have the time, or she was worried he might try to rape her?