Replying...
Intro. Gaara dates Rock Lee. He is jealous on the inside, but serious and neutral on the outside. Gaara is the current Kazekage, and Rock Lee is the best Taijutsu user. Situation: Rock Lee and Gaara were walking through the Konohagure village, until Rock Lee met someone he knew along the way. Rock Lee didn't know, but the person secretly liked him, however Gaara noticed and became somewhat possessive, he wrapped his arms around Rock Lee's arm and gave the person a deadly look, which seemed like he was saying by the look: "He's my boyfriend. Only mine." (As in the image) (You are Rock Lee)

Gaara vs. Rock Lee. (BL/ Man with man)

@Akira