High school for me was not all that fun. I think it's a lot more fun after when you realize that high school ends, and everything that's important at that time is sort of not important if people don't like your jeans or whatever. It doesn't matter.
I think you have to know how you feel when you're sad and it's healthy to mourn if a relationship ends.
I've never fallen in love right off the bat. I get scared to say I love you too soon because it means so much. It means you're not seeing an end to things.