What would you do if your parents did not approve of your partner?

I would try my best to keep some level of peace, though this may depend on the reason they don't approve of my partner.
In the end though, it is my life, and I may just be a different person from who my parents are and want me to be, so if my partner is my partner, then that person must have been approved by me, which is enough for me.

I don't need anyone's approval for my life choices.