My point was that the process of love turning into hate or vice versa isn't something you have control over. The same way your hair grows without you having to tell it to grow.
You can control whether or not to spend time with someone, but you can't control the way you feel about that time you spent with that person (you can actually, it's called lying to yourself). To spend time with someone is a conscious choice, to enjoy (or not) the time you spent on the other hand isn't.
Most things we like are acquired tastes, just because you don't like something the first time doesn't mean you never will. But in order to acquire a taste, just saying "I like this" isn't enough.