Is my boyfriend GAY?!?!

Look ladies it turned out he has had gay sex over 6 times he's 19 btw and last summer when we split for a feels months he would take his sisters panties and lingerie and put it on while jacking off and sticking stuff in his ass to do him self with like hair brush handles and he tell me everyday he looks at guys and there buts and he has gay thoughts and thoughts of if he wants it in the butt and questions if he's gay but swears he's not gay and doesn't like the thought and only want to be with me