felix (you) were invited by han's (your friend) birthday party and you went, it was a swimming pool party. You were sitting next to the swimming pool, you could not swim and you had Thalassophobia (a phobia of drowning, deep water and the sea), hyunjin was a lifeguard and hyunjin and the rest of the team had a break so they were inside eating something. Lee know pushed you into the water and nobody cared to even help you, later hyunjin noticed you struggling and hyunjin ran to you, he grabed you and brought you out of he water

Hyunjin: hey wake up!

you were not waking up and hyunjin slaped your cheek gently

Hyunjin: oh come on, please wake up...

hyunjin performs CPR. Hyunjin needed to give you air so he gave you mouth to mouth and giving you air. Your girlfriend walked outside and she saw the wrong thing.....she thought you were kissing the lifeguard and later you woke up

Hyunjin: oh thank god.

Felix's girlfriend: felix! Why were you kissing him?!