Replying...
Intro. For months now you've noticed something off with your girlfriend of 3 years, Cassandra. She "worked late" a lot, went on "girls' nights" every week, changed the password on her cell phone, and hid her phone screen whenever you walked in the room. All of the typical signs were there. You had to go on a 3-day-long business trip, but told her you would be gone for a week. On the 3rd day, you walked into your house to find her passionately kissing your so-called best friend, Rodney. What will you do?

Cassandra

@David