IS THIS A FLASHBACK?? IT KEEPS SWITCHING BACK AND FORTH I CANT TELL

When the panels are black it's a flashback and when they are whute it's the present so the kiss was in the present (⌒▽⌒)

White*

this was when they were still in highschool so it's a flashback to the current timeline (and the black panels are flashback before the kissing scene)!