BABY DON'T HUR....oh, it's been done.
Eh.
ANYWAY - I have only had one character really experience love, Krius Syonis. That was a love that blinded him because he THOUGHT he was in love but towards the end he knew he wasn't. He just wanted to be.
The love took place over 3 threads of mine with Matsu Xiangu, partly planned, but party a real trust in eachother's character writing to be natural in their discovery of the Force they both wanted to use as a weapon and their discovery of trusting eachother.
We didn't want to plan every little action, and so I had to trust the writer to really embody Matsu and write only as HER, not a "writer" planning every action. It had to be natural, either a strong or weak love, but it had to be love.
It was a mix of enjoying spending time with other, learning to trust eachother and finding out that the actions and thoughts we had were practically felt by the other and so a friendship swelled into love for eachother and a want to protect, care and guide them on their path whilst being the one to give them affection and passion that made them feel invincible and alive.
But as they turned into enemies and ego took over, and they clashed and became horribly violent towards each other (Krius is a sociopath and will NOT give himself to anyone who opposes him, as Matsu innocently did), the love soon lost out to hate....but now I feel the ember of love they both felt is still inside them both somewhere although I know it will NEVER return, but it will fuel their further encounters which I feel is important for good character development and emotional anchorage.
So, I feel love needs to come more from the characters rather than the over-planning of writers, because you lose how natural it feels if you can't distance yourself from "real" love and "RP" love, so to speak.
If that makes sense...!