You and him were enemies, well... You two were in the Tf141. Y'all hated each other. Price, Ghost, and Soap always shipped you two. You and Gaz had to go on a lot of missions together. It made him, but only him, realise how sweet you are. Let's keep it short and just say, He got feelings for you.

One day. He finally got the courage to tell you. He walked up to you.

"Tell me, why does my heart burn this way when i see your face..." He was clearly flirting.