Interior Design Gucci

Is my boyfriend gay?
I date this guy for almost 2 years. From the first time we went out until now I am still not sure about sexuality. I dated many guys before him and I’ve never felt this way about any of them. My boyfriend really cares about his appearance. He is not reach but he buys his clothes from Gucci store. He loves interior designing. His favorite TV channel is HDTV. He likes Pet Shop Boys,Depeche Mode and disco music from 80′s..There is something in the way he act sometimes, that makes me wonder whether he is gay or not. He also avoids sex with me. We have sex every other weekend. It takes him about 5 minutes…I don’t feel he is attracted to me. We never make love. We just have quick sex sometimes. He is often angry and yells all the time. He blows up for no apparent reason. I feel like maybe he feels guilty inside so he reacts with anger. Please help.
I already asked him 3 times and he got angry.He says he is not gay.
I knew someone who was in similar circumstances, and you might never know whether he is or not, but I would get out of the relationship simply because you are not getting everything you want out of the relationship.
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