someone can't read...post 136 is irrelevant to the point. Pick any number you like: 3 months, 6 months, a year. (I guarantee if you start at a year at 14 it will be down to a month by 28, so you can factor that in, as well.)
Serious relationships don't have a time limit on them.....one can go years in between serious relationships. I know you aren't really this ignorant :) This isn't a game of semantics. Stop making it out to be one.