1. I love him.

2. I cannot find another man.

3. I will change him.

4. I can't tell him I want to quit.

5. I need his money.

6. We have been together for long.

7. Have already met his parents.

8. We have fixed the wedding date.

9. We made a vow.

10. I don't wanna be alone.

11. Where do I start from?

12. I cannot live without him.

13. He is my first love.

14. He can be very nice and caring (even when he ill-treats you).

15. A Pastor said he will be my husband.
None of the reasons mentioned above is sufficient for you to be in a bad relationship. Don't be a slave of your feelings. Quit the bad/sinful/abusive relationship before it is too late (before marriage) and wait on the Lord. "For the scripture saith, Whosoever believeth on him shall not be ashamed." (Romans 10:11)