I mean, you are not wrong. I try to stop to make sense out of the plot, or the characters reactions and just treat it like a slasher/horror movie where the cast acts in the dumbest ways so they can get killed off. But it's kinda hard, as we should care about the girls...
Weakest part was that we didn't even get Mai's explanation...but a time skip and a really short version, which didn't made any sense and that somehow, Summer was ok with the explanation we never heard...which either means, the full version was very different, or more likely Summer is really dumb/naive. (at least we can tell Mai to fuck off)
Mai's explanation to the MC nearly drowning doesn't make any sense either, and is infact so dumb, that even the MC asks what exactly Mai would do against the guy which just kicked him in the face...instead of you know, make sure her friend/lover is alright.
Beside that i wanna know what Jay meant with stealling both his girls...like i have zero interest in Lea, and she dropped his ass before we ever meet her. For the second one i could only think of MC's ex...but from what i remember, they were together and/or in each others live pretty much the whole time, so i'm not sure where Jay would fit there, with the MC not knowing about him.
Meh, even punching Alex was skiped...like that was the best part about following Lea...and it will likely be ignored going forward, like the time Alex assaulted the MC early on and we shoved Alex face in his own puke.