Board Thread:Naruto Discussions/@comment-8284722-20141222195100/@comment-3279282-20150103200031

But there are not two women who act the same, even if they have the same love interest:
 * Sakura is all lovey-dovey at first, but matures over time
 * Ino isn't after Sasuke as much as Sakura is, she had a minor crush in part I, which is almost nonexistent in part II
 * Karin is after Sasuke in the most crazy and offensive way, completely unlike Sakura or anyone else
 * Tsunade's love interest is the most normal. She had this guy, he had her, but he died and his death changed her deeply
 * Hinata's love interest is Naruto, but she's way too shy to do anything
 * Konan's love interest was Yahiko, but he died early, so there's nothing else
 * Mei has no love interest, no idea why you mentioned her. Also, she's strong.
 * Rin's love interest was Kakashi, but she was shy as well. Not as much as Hinata, but she still watched from afar.

So while almost all of these girls had a love interest, every single one approached it in a different way, something like a crazy-skala, going from active to passive: Karin > Sakura > Ino > Tsunade/Konan > Rin > Hinata

The only obsessive ones in this list are Karin and Sakura, everyone else was perfectly understandable, I believe. And even Sakura's love changed from obsessive to caring over the years.