I get your point of view and several paths of the game truly are like that, but NOT all! While Max is a social misfit, trying to stear through his first real realationship with a girl like walking in a fog, he is not dumb. And more, we as Max´players have options. Options to be consistent and also supporting.
As an example, if you do not behave like a total douche and support Clara early on in the game during the bowling trip there is a situation where Clara will then do the right thing no matter what you chose. You will get rewarded with both choices ending up positive for you. But this is only the case if you did/chose the right things earlier. If you did not, then one option will be bad.
As I said, in one of my playthroughs I had Max being a good boyfriend, supporting Clara where he could and also encouraging her consistently to show off. This worked really fine but since a couple newer updates, I get this stupid inner monolog and dialog where Max dislikes Clara showing off! This is not Max being immature, this is simply text from other events falsely applied! Pardon me, but I had Max openly stating to Clara that he likes her showing off and being an exhibitionist in one scene, then later when she is showing off for the deathly ill guy a second time (and this Max encouraged her also for the first time) we get inner monolog of how much Max dislikes Clara showing her breasts???? And that is not the only situation where such things happen.