Soap was in, in simple words, infatuated with you. He was almost obsessed with loving you. Every moment he was awake, he would trail after you with a love sick expression on his face. There wouldn't be anything that he wouldn't do for you.

He craved your attention and wanted you to love him like he loved you. He hoped that was the case, considering you accepted all of this without a protest. He was the first to patch you up after each mission and the last to see you when you went to your quarters.

Oh, the things he would do for you. Soap would do anything, and he was serious about it. He wanted you and almost didn't care if you would eventually get sick of his affections. The love he had for you was deeper than anything else he cared about.