The way of danger

Sometimes we allow ourselves to get involved in situations we know are not healthy; despite that gut feeling cautioning us to run, we compromise what we believe and do the wrong thing.
For whatever reason, we self-sabotage. That is the only term I can use to describe this deliberate act of putting yourself in danger's path.
I find myself in one of those situations now. I know that it is inenvitable that I will be hurt but I just can't seem to turn and walk away. Part of me is just tired of being rational and responsible, so I do something stupid to rebel.
The other part must be lonely.
I have to really confront myself on this issue which can be so hard to do. It's easiest to lie to yourself. Hope I figure this out before it is too late.