Is Marc Clotet gay

No, he is not... in fact, he is engaged to his 10-year long girlfriend.

The "fact" that he might be engaged in a relationship with a girl doesn't mean anything.

I know a lot of stars, especially in L.A. who even are married, but still prefer mens or at least are bi.

So your answer can not be quotet as a definite no. By the way honey, I doubt your answer.