It can be either, but it is not lord and master. It may try to go one way, but it can be stopped. In other words, it can head towards disaster and heartache, but you can prevent that by not letting it hurt you. It can head towards bliss, and through anger or other reasons, you can divert it to be nothing.
If you want to experience love, best to not be pushy with it, and when it begins to develop, don’t mess around and kill it.