A bad relationship.
We are easily able to form habits subconsciously but we can never break it the same way. We only can free ourselves from it consciously which is one of the most difficult missions to accomplish.
That's how people keeps struggling with addictions in variable categories and it's a draining process to make a change.
Scientology (a cult)
deep deep deep unconditional love
bad habbits! It's so hard to quiet them