Been in both position

Exactly. Time doesn't tell, it reveals.

Definitely, just because you feel you're in love with someone in two weeks does not make it so. You're only infatuated with them. You can't even truely know someone within two weeks, and that's what love really is, seeing someone's true self and accepting and loving their true self. You have a connection with them and possibly chemistry, but in order for love to stand the test of time, it takes time.

Yeah relationships need to be built. There's so much to understand about a person to be comfortable with them, and there's so much you have to know is okay with them and not okay with them.