Two for the money

How do you pay a Two for all that s/he has done for you? With appreciation.
If you are a Two, when you don't protect your boundaries (by doing too much or allowing yourself to be taken advantage of), look out for doing things for people for appreciation. Sometimes those who appreciate most received the most from you.
A special note here has to be made of religious motivation. People with unsophisticated religious understandings will often do too much or allow exploitation if they think God will appreciate it. (High places in heaven, stars in your crown: these are metaphors for Divine appreciation). See a theologian and/or a therapist for beliefs like these.