@Thehungrybanana
I don't think he's necessarily bi. I think he just likes him because he reminds of that girl more than anything. After this chapter, it seems to be mainly projection.
why not both? It clearly implied they did have feelings for each other, but he was forced to marry the princess so she married the wizard guy. On top of the fact , that his wife refuses to sleep with him so they are both horn and in love.
@Guroga
Yeah, I mean while I faulted him at first, after the princess told me they will never have sex again, I'm totally on his side now and usually I hate cheating characters.