I'm 99% sure he's gay/bi. He used to have a YouTube channel where he would have "sassy gay reviews" and though most of the videos are down he still has a video up with Charles Gross where he talks about the type of men he likes.
Oh yes, he's very gay lol. He is shy/coy about being totally open with it on his isnta, perhaps because of modeling where ambiguity is a good thing, but he still pings. He just doesn't discuss his sexuality directly.
Here's the youtube with Charles Gross where he is more open about his preferences:
. Coen seems uncomfortable with Charles at time- interestingly, he doesn't even follow Charles any more, they're suuuper different and I can't see how they were ever friends in the first place lol.