I had the same problem, so I wrote a quick fix.When playing with latest version I get a bug where you text with Melissa to meet up after she found out you are male during photo event. After texting with her any desciding a time and place to meet to talk the game offers no way to quit the conversation.
View attachment 2020039
You must go back to a save game where the message hasn't yet appeared on your phone.
Note to developer : variable $textActs was mistakenly written as $textApps in MelissaEvents.