Nothing can be much sweeter than Ino. It was probably the most stable relationship he ever found himself able to maintain, because kissing her as hard or as soft as he wanted was returned with honest affection. She was sweet, maybe bitterly so, and in that regard she was much like Temari.
(Maybe that was why he liked her.)
You couldn't go wrong with someone like her. Sweet. Honest. Beautiful. Strong. He can't tell if it was ignorance that led him to believe she was all of these things, up to the point where he saw her kill an Oto nin by lacerating the jaws with a jagged piece of glass and disemboweling him, wrapping the job up by splitting the body into two hollow pieces and sloppily cremating it in a bonfire. He watched her lick the kunai clean.
Fifteen minutes later she was on the ground, skirt hiked around her waist and legs hiked backwards over his shoulders, all of his cock shoved inside her fragile form. Ino was still sweet. But fucking her seemed a little more justified after what he watched her do.
He is not surprised when the relationship doesn't work.
Ino is too much like Temari.