It very likely means he is putting to much pressure on himself, when it comes to sex. He may also be afraid to tell you what he truly wants for fear of offending you. He might be having trouble with either getting hard or premature ***********. I don't think he is gay. He might have a video-game addiction. Sex should always be better than video games. I play videogames, but would gladly leave mid game any time sex was offered.
He perfers his fantasy world to the real one. Sounds like he is not that into you. ************ is no substitute for sex but does relieve the "preasure". He clearly does not care what you feel or think.
Time to move on.
that's the whole thing you know the answer it's he has not come to the fact that he has ed problems and not ready to face them problems
He probably has self confidence issues. For most of his life he was probably used to ************ and playing video games and does them well. Introduce another person to the equation and he probably starts to worry about whether he will satisfy you or what you will think of him, and it becomes easier to revert to the old habits.
Also it might be more enjoyable for him to fulfill himself sexually instead of another person doing it, especially if there is any tension, or if the other person doesn't know how to satisfy him in the same way.
He's possibly gay / or if this is happening with your partner he is getting it elsewhere , he definetly needs some help
I would say he is not getting what he wants from women or has worries about penile dysfunction