My girlfriend and I just broke up after four months of the greate...

My girlfriend and I just broke up after four months of the greatest relationship a couple could experience. We never had one fight, never argued, had all the same interest, and were perfect together. She got on the pill not long after we started dating from not being on anything and everything was fine. Just over a month ago her OBGYN switched her to the NuvaRing and a week into her second month still never having any problems at all about anything, she walks into my house and in five minutes chews me out about every little thing she can find wrong with me and breaks up with me. She started acting funny about three days earlier, not speaking to me, being very aloof, stand offish. The only thing that changed in our relationship is the NuvaRing. It's the Devil!!!