Correct me if I'm wrong on any of this because I don't consider myself a druggy, but almost any pill you get is going to be cut with something. Pure MDMA only lasts an hour or two, if that. The pill didn't have to be cut with Meth. It could have been, and if its a cheap pill it probably was, but I think the more expensive pills are cut with speed, and that will definitely get you going all through the night. If you aren't used to it, coming down will feel pretty shitty. You'll feel pretty beat but you know that you can't sleep, and will feel like this for hours.

Oh, and I'm not sure if this has been mentioned before, but her not calling you until later is pretty weird also. Usually when you are on E you get on a huge emotional high, and the people close to you are the ones you think of the most. You'll start thinking of past girlfriends and want to call them and talk to them.