Most cases of teenager/young adult romance are not really good relationships, end up bad, and then you can say it wasn't true love. They are "crushes," which are hormone-induced and may or may not be love. Love could happen instantly, but it needs time to develop before you can be sure, since crushes also happen in varying degrees of intensity.
Actually now I think love develops from crushes, and is just a more advanced form of it.
AAAARGH I NEED MORE TIME TO THINK
Actually now I think love develops from crushes, and is just a more advanced form of it.
AAAARGH I NEED MORE TIME TO THINK