This actor was pretty meh on Roseanne too, someone has to play the straight guy but there are lots of better actors for this.
You have repeated this more than a few times, I believe in this thread only, yet the internet, interviews with him all connect him to being a normal straight guy. Unless he turned you down in a bar sometime or you have other, more intimate, knowledge of his sexuality, I find your assertions to be quite funny. At this juncture in time, I am going to go with the assumption that he turned you down at one time thus you are bitter towards him and want to spread rumors about him everywhere you go.