You shouldn't expect people to always enjoy things you like.
Allison is spending the evening with her boyfriend, and they want to watch a TV show.
Allison wants to watch a sci fi show she heard good things about.
Allison is not sure her boyfriend would like that specific show and asks him to choose a sci fi show to watch.
Allison insists on watching the sci fi show and swears to her boyfriend that he will like it.
Her boyfriend enjoys the show he chose and Allison is glad she let him choose.
Her boyfriend doesn't like the show, and Allison is very disappointed to hear that.