Person A in this scenario, is the one who is hopelessly in love with person B, and is trying, and failing, to hide it. (Struggling with their emotions)
B is the one who is deeply in love with A, but will never admit it (Tsundere baka), and is pretty good at hiding their affection.
————
One day, A suddenly pulls B into a kiss. After a few seconds, B has not reacted, so A pulls away, afraid that they did something wrong. B has an odd look on their face, so A starts profusely apologizing...
Only to be interrupted by B pulling A back into the kiss.
This works so well with Reed900 I'm sorry but it does
