My heart swelled in me as if it would burst.

Despite herself, watching him walk away, her heart swelled with hope.

Her heart swelled with all the good she might be able to do.

She was by far the most beautiful woman he'd ever known, and his heart swelled with love at the sight of her.

My heart swelled with love, and I laughed at myself.

His heart swelled as if it would burst with love for the boy.

His heart swelled with pride at what he had just said.

I have to get away from here, he thought, his heart swelling with panic.

Her heart swelled with love until she thought it might burst.

His heart swelled with a feeling he could not name.