The day that Taiga left was a day Ryuuji would always remember.
Even after he knew she was gone, he also knew she would come back.
He didn't care how long he'd have to wait. It could be weeks, months, years…he would always love her. Ryuuji felt love too strong to be replaced with anything else.
He loved her. He really loved her. He always would, even if the world fell apart. He loved her; her perfections, her flaws, he loved it all.
She was the only one for him.
So he'd wait. He'd wait patiently for her to come back home. To come back and fall right into his arms.