I live with my dp and two dd from a previous relationship. The past few weeks ive noticed tension between my eldest (11 years old) and my dp. My eldest has had a tough past few years, her relationship with her dad isnt good due to EA. Last night she was watching tv and laughing and i said listen to the laughing and my dp said "it sounds fake". This has really pissed me off, why would an 11 yo fake laugh at the tv. Im really mad at him, am i over reacting?