If love had nothing to do with choice, it would never die and we'd all live happily ever after. Anything and everything involving the mind and heart starts with choice. It happens because we allow it to. It can be started, stopped, changed... however we will it to be.
We choose to give in to the feelings. We choose to open our hearts, or not, to let those feelings come in to begin with. Just like we choose to shut people out.
Feeling is undoubtedly controllable. If it wasn't, than "I did that because I was mad and couldn't help it," would be an acceptable excuse. If feeling wasn't controllable we wouldn't cheer people up, tell our kids to stop pouting, develop "thick skin," or any number of other ways that we learn to control "feelings."
The rest of your post, I have no idea where you got the impression that I thought love had anything to do with infatuation or fairy tales.