relationship advice?

so I have a close friend and I previously thought he was gay. he always tells me about his dates with guys and his relationships.

long story short, after acting strange around me for six months he told me he has feelings for me?
I've never been more confused in my life. I don't want to hurt his feelings so I told him to give me time to think. but i don't think i can date him since he clearly has a preference. is this homophobic of me?

I'm already mourning my friendship with him.