Me:*Sends more than a few messages over a period of time even though the other person is not replying*
Insecurities and paranoia:they HATE you, I bet that message they sent was the last one you're ever getting, I can feel them slowly starting to become annoyed and tired with you as we speak.
Reason:That's so irrational, there could be multiple reasons why they are not responding, maybe they're sleeping, maybe they're busy talking with someone else or have gone out. I very much doubt they hate you. Just be patient and focus on something else.
Insecurities and paranoia:okay but what if they actually DO hate you?