I Am a Curious Person

I love to take care of PMSing or Mood swings of a girl. When my sister was pregnant none could calm him down when she gets angry, but I always keep her patience and calm by talking to her and always keeping a box of chocolate and candies in my room so that in any time I have supply of them. I also took care of my LDR gf when she used to PMsing over phone.. When she is normal she asked me how can I tolerate her witjought getting angry.. I said I dont know.. I understand you are having a bad time and bad mood but that doesn't change who you are and how much I love you and care for you.. What ever I do happens naturally.
Now thinking about all these situation I am a bit suspicious if I have woman nature in me? Or is it possible that a man can be as much caring and loving as a woman? To make a point I am straight and only feel attracted to women. But this suspisions make me feel odd sometimes.