Brian and Mikes girlfriend are hiding something from us

I don't know if anyone has noticed but Brian and Mikes girlfriend have been acting really strange. Something is currently going on behind our backs. <br><br>Mike's girlfriend has been changing Brian's diapers for weeks, but she always asks Brian first now. She used to just change them without askingBrian. <br><br>Also Brian and Mikes girlfriend were talking and Brian got really mad at her and started yelling at her. He doesn't normally do that. <br><br>Brian and Mikes girlfriend also spend more time together alone without Mike or I. <br><br>Has anyone else noticed anything?