As far as I remember. They are not going out (ie Lovers) yet, probably there's a saying somewhere that if 2 people go to the festival together they're a couple. But for Leslie, ateast, she has pure/innocent intentions. Her brothers are just too overdramatic and overprotective xD
So current timeline with Mommy Hosik is 3rd time they reincarnated??? Does Sunbae remember both times? That's why he was so aggressive to the point of crazy obssessive? Hmmm. (⊙…⊙ )
Mother arrived per baby boys request (probably) (๑•ㅂ•)و✧