How to deal with them: For the sake of your soul, you have to get over it. If they wanted to be with you, they wouldn't be currently be dating someone else. There's no such thing as star-crossed lovers in 2015, they don't like you. So, ignore, ignore, ignore. They won’t really care if you’re gone and only talked to you when Netflix was buffering, anyway.
The one who won't stop blowing up your phone
You met this one on Tinder and foolishly decided to reply after receiving 70 variations on the phrase “hey, you up?” After supplying your phone number and pity hooking up once, your hints aren’t caught and contact is being attempted every single damn day.
How to deal with them
With a carefully crafted text message suggesting that they’ve accidentally been texting a 12-year-old, of course! “hey lol i think u have the wrong number, im 12 and what is this?” You can also try the classic "the AT&T customer is no longer available at the number."