(DISCLAIMER DO NOT READ IF HOMOPHOBIC OR DO NOT LIKE READING DIRTY-ISH THINGS)
Mark thought about what micheal said all day, not knowing what to say or what to think, he was stuck in the middle of gay and straight at this point. So he took one of those gay tests.
Mark: "bisexual? What's that?"
(After looking at the meaning)
Mark: "oh that makes more sense..I guess I maybe am then?"
Mark shut down his computer, moved it to his bedside cabinet and lay like a starfish on his bed
Mark: "ugh.."
Mark: "I don't know..the only thing I DO know is that I should be apologizing to Mike, he seemed really upset yesterday.