FIB- You are doing the right thing, agape love is not a feeling its an action and you can still have boundries, but we are called to this......you have the right idea..there is so much comfort and wisdom in proverbs and psalms, it might helo if u read a chapter from each book every day..
Proverbs 25:21-22
21 If your enemy is hungry, give him food to eat; if he is thirsty, give him water to drink.
22 In doing this, you will heap burning coals on his head, and the LORD will reward you.