How come teens/preteens say that they understand love after dating for less than 10 months?

As a 15 year old i totally agree with u.. its crazy that teens actually say they love eachother when they really dont.. in my opinion we r to immiture to comprehend the meaning of it .. of course there are rarley exceptions aka highschool swerthearts but besides that they majority.of teens dont know wut love is nor has ever felt it ... they just say it becuz they can but they shouldnt.