I think so...
You can love someone so much to the point that its gets you crazy and sick in the head... you stalk them and become controling and possesive etc...
But you can also love someone so much that your world without that person wouldnt mean anything, that you can't see yourself without them and that they are everything for you.
You want to be with them all the time and when your with them you want to be close to them... and that can be seen as clingy but sometimes it's just too much love... I think anyone can feel like that about someone but people try to keep it cool not to freak out the other partner :)