They seem extremely immature. The ENTP probably likes you and doesn't know what else to do. Young ENTPs are a hurricane of pure Ne, their Ti won't start maturing until their late teens.
But don't listen to everyone in this thread; judge everyone based on their type! Avoid these three! There will never be one that you like!
On a side note- the bully from my old school is a pretty classic ESTJ. One of my very good friends is an ESTJ also. So the correlation definitely works. Same with pretty much every type! I'm sure there is someone of every type that I will hate and someone that I'll love.
For serious though. Just avoid these people. They sound like immature people who just want attention in high school. Find some like minded people (if you haven't already) to associate with.
ENTPs probably do stuff to get reactions out of people so that they are made aware of what the other person thinks of them. This is because ENTPs are awful at determining people's inner emotional states without some sort of Fe information.
Your dad sounds like any dad that is worried about your safety.
Ignore the ESFJ. She will stop caring about you. You've got the entire winter break (they'll probably forget about you), just totally ignore her (and the ENTP/anyone else that bothers you). Stuff should be fine. Problem solved.