I live the story plot, teenagers have crushes and sometimes they last and others don't (which people calls the crushes Puppy Love).
With kissing booth 3 details the outcome of them going to college, yes the ending could have ended with them getting together, but based on true life...let's face it, sometimes relationships do work out while others fizzles out.
Relationships are hard and we all have to work at it and by Elle and Noah not texting while in different colleges put a strain on their used to be relationship and they have to get to know each other all over again. Yes the love will still be there, but the likes and dislikes will have to be explored.
Not all relationships are the same and we all have different expectations of what we want out of it. Hopefully Elle and Noah will hash out their differences if not Hopefully they can remain friends.