You also feel the love from them to you. The relationship between one person and the other, especially those close to you, always need such two-way interactions.
When someone loves you, you should love them again. Treat them as well as, or even better, than the way they treat you. Because having such people in life is great happiness.
But if someone doesn’t respect you, or they don’t like who you are, you should not bother or waste your time on them. You just need to forget them, like you and they are not destined to be together.