Is it wrong

To regret that you have a conscious? I just bet my brother $1000 that Meg Ryan was in Top Gun. The problem is that I owe him $1750. If I didn't owe hm anything I would forgive the bet. He is willing to honor this this bet but I think it is mainly because he he thinks I can't actually pay him back. So I'm torn between winning an honest bet and proving my brother wrong.