Dude, firstly don't get bogged down in all that period, time of the month, PMT stuff. Its almost never the answer and if it is then all i can suggest is the use of choclate and ice cream or cheesecake. women suprisingly enough are exactly the same as guys, they may pretend to be differant but in the end we all want the same thing, the perfect partner. If she has trouble with you talking to her twin, don't stop doing it, talk to her about it. I spend a lot of my life talking so take it from me, the only thing to do is to talk.