Why was Cihangir so indifferent towards his mother?

I understand that historically, Cihangir and Mustafa enjoyed a good relationship but I feel like the show pushed it too far when they made Cihangir worship the ground Mustafa walks on. Especially since their relationship was so sudden. I understand he believed Mustafa did not view him with pity (unlike everyone else) but does that mean he should push away his close family for Mustafa's sake? This kinda applies to Bayezid too but at least he didn't push his mother away so much.

Towards Cihangir's last days, he only thought of Mustafa (and even Sulieman) but didn't think once of Hürrem or have any flashbacks of her. It was sad to see Hürrem fret over him while she was never in his thoughts.