one of the gay elements
When Eyal and Axel were in a gay bar while Eyal was visiting him, all those questions about Axel's sexuality indicate that Eyal was a bit into the "thing".
Why?
As a gay guy myself, I think, if you are straight, why do you have to be shy to ask those questions? You can see the facial expression of Eyal that shows his embrassment. Will you be embrassed like that if you are straight?
Quite a few straight guys joked about me being gay (but they don't know that I am, lol), they don't have any embrassment at all. I mean, you are either too embrassed to ask those questions or you are comfortable of being straight and will not be embrassed by simply asking.
Eye contact from one to another can express things though he/she does not admit them orally. When I was sitting in a lecture room with more than 60 students, one guy kept looking at me every now and then, and in every single lecture he did it. When I came out to him and ask if he was gay, he told me that he had a gf and when I asked why he looked at me like that, he said that it was just because he knew me. LOL after I asked about that he still did the same thing to me.
One guy when I came out to him, he was so interested that he asked me a lot of those questions, VERY MUCH like the questions Eyal asked Axel, but the difference was, my friend who asked me was comfortable of his sexuality that he did not have any embrassment, at least not shown on his face.
A question to you straight guys: will you be embrassed when you ask those questions to a guy whom you know that he is gay?
Answers don't matter, what matters is what you are.