Is after the underlined word? If so, it'd be a preposition. It's followed by a noun.
Answer:
In other words, your happiness is their happiness, and your pain is their pain. “Someone in love will care about your feelings and your well-being,” Dr. Flores said.
Explanation:
When someone is not only sympathetic when something happens to you, but also empathetic, it may be another sign that they are in love with you.
I could be wrong but I think its bellicose
