Do you think this is morally wrong?

So before I ask you the direct question, I'll start off by telling you the story so its not as bad as you think. So when i was little my birth mother was proved to be unfit so my uncle took me in. While he tried to get full custody of me he got married. When he finally did they became my parents to me. So I call them mom and dad. Well in about the second year of their marriage it kinda got shaky not sure why. And at that time I was a Mommy's. So she felt that if anything where to happen to their marriage i should go with her. So she ended up getting full custody. Keep in mind that i am not adopted. My birth mother will not sign the paper so I am still her son, just not in her care. Well my real family, all my dads side I don't count as family except my siblings. I count my moms family as my family. Which I'm not related to by any means blood or by being adoptive. Well my moms sister, "my aunt" has a son, hes only a year younger. So I'm gay. And i kinda have feelings for him. We are sorta close. I do not know if he gay or not, he goes around like hes straight so I'm uming hes not gay. But i still like him. And i want to know is it really bad to have these feelings for someone who i think of as a cousin, even though we are not family in anyway? And I'm 16, and I he knows and I'm gay, and I don't plan on imposing my uality on him. Actually I don't plan on him ever knowing. **And i don't want some rude answer about it being and stuff, just want to know how you view it. So answer it maturely. And if you have a problem with gay anything then it would also be a good ideal not to answer. So ill be grateful for what ever you guys tell me!!**