Confused about sexuality?

I am a guy and I find myself getting aroused more easily by male porn/thinking about guys but orgasms are very weak. It takes a lot longer for me to get erections with lesbian porn/thinking of women but they give me my best orgasms whn masturbating. Ive kissed a guy before and it was really uncomfortable, almost threw up, and felt nauseous te rest of the day. I also find it easier to connect with women romantically. Not at all with guys. Help!