An interesting interpretation of “love your enemies”…
“If I want to love poisonous snakes, then my only job is to learn about them and to understand them. If I want to handle poisonous snakes then I need to accept the nature of the creature and do my best to minimise harm. I have no desire to handle poisonous snakes

In regards to human enemies however, who are not snakes but people...
My own inner loving God, as a loving parent of my inner self would tell their child to stay away from bullies. It is also not mandatory for me to like everyone, doesn't matter how enlightened I become, if I am allergic to or do not prefer oranges, I don't have to eat them.”
We may be almost forced to interact with people who have shown a pattern of harmful behavior. Maybe the ultimate ideal goal is to be as sunlight - able to shine on all without being polluted. Until then, as imperfect works-in-progress, boundaries are essential for keeping the greatest commandments in harmony.