does that make me a bad person?

Just FYI this is not going to be about her. My roommate Mikal, pronounced like Michael, has a fiance (Heather) who is also her at Disney and they'll be getting married in about a week. So she is always over her or he over there. Lately she's been over her a lot and I'm ok with that, she's generally a pretty nice problem so I have no prob.

Last night I got home from work around 11pm and was making some eats. She came in about ten minutes after I did, so I guess she has a key now, hmm. I sat down to munch some grub and check my e-mails. I knew every that Mikal was sleeping in his bedroom so I turned the music down to a reasonable volume. But the instant I turned the music on Heather says to me "do you have to have that on?" I just gave her a blank look that said "huh?" Then she said "Mikal is sleeping and I don't want you to wake him." I assured her that Mikal would be fine and the music wasn't loud enough to bother him. But she persisted and not only that she gave me the pouty puppy dog face. I CAN'T STAND the puppy dog face. It made me want to turn the volume up, but i didn't I'm not that big of a jerk.

1st of all, you don't live her Heather. 2nd, if Mikal is bothered by the music I expect him to be a big enough kid to come out and tell me himself. And 3rd, my music is not going to wake him anymore than you going in there to pet his hair or whatever you were doing going into his room while he's "sleeping."

Anyway she decided that she was going to go into his room and listen for the music and if she could hear it would continue our debate, if not it's over I win. This is the part I'm wondering about. She went into the room and as soon as the door closed I pushed mute. And as soon as the door began to open for her to come out I pushed unmute. She came out looking suprised. She honestly thought that she would hear my music. All she said was something about how our apt must be better sound proffed than hers. I just nodded.

So, viewers, that make me a bad person? Technically I cheated. What would you have done? Oh well it's over now. I win!