So the whole gist of this is that the 4 of them(1 guy, 3 girls) used to be friends but fell apart in highschool...got reunited and he did the deed with girl 1..who later becomes his girlfriend. While dating girl 1, he cheated with girl 2 which he's close with(childhood friend) and so breaks up with girl 1. And now he dates girl 2 and AGAIN..cheats on her with girl 3....
After cheating girl 2, girl 1 comes back and to not break neither girl 1 heat or girl 2 heat he is shared by girl 2 and girl 1 and ends up breaking up with girl 2 to be with girl 1 that is the last girlfriend. Girl 3 was a unique night stand as a favor
So the whole gist of this is that the 4 of them(1 guy, 3 girls) used to be friends but fell apart in highschool...got reunited and he did the deed with girl 1..who later becomes his girlfriend. While dating girl 1, he cheated with girl 2 which he's close with(childhood friend) and so breaks up with girl 1. And now he dates girl 2 and AGAIN..cheats on her with girl 3....