How do you love someone unconditionally?

They say remove the toxic people in your life...but is it worth it if it leaves you alone?

Nobody is perfect. What happens if you avoid people like plague because of how much they hurt you? They say people change. Well they don't if they don't want to, and it's up to you to harden your heart so their behavior would hurt you no more. But what if they're your responsibility? What if you give and give and yet they don't bother to thank you or to help?

What happens if the person hurting you the most, the one who doesn't want to change for you is family?

How do you find the balance?