Yes but it is because they came in and started it. If I just ignored exited, then he knows that any time I'm around he can just get me to leave by saying a few things. I'd rather not have that. You can't just turn the other cheek on everything in life, it's a worse alternative.
So your answer is to be an *** as well and then ignore them, like the bus crasher suggested, you know by blocking them like you did? lol...
The funny thing about all of this is that you played right into his hands and acted just like he wanted you to... and then you thought you taught him a lesson or something by reacting the way you did. It's pretty amusing.