It's a Metaphore

I’m always the one who loves more.

You can spend years with a person and they can still turn their back on you. You can talk about having a future with someone and they can knock down all the hopes you ever had.

“I just want someone to love me as much as I love them, but I know that will never happen because I have a big heart, and that’s the price you pay when you have a big heart”