Obligation

The only person you'll ever be obligated is yourself. Value your worth. Value your energy. Value your presence and time. Set boundaries. Honour them. They can make you feel guilty but box that guilt up for your own sanity. Don't let anyone cross even a tiny bit of that boundary. Respect it yourself and ensure that you voice them when it's starting to get uncomfortable.

You're obligated to only protect yourself before anything and anyone else.