I think Obito is the son Madara never had.

[HomerSimpson]

When they first meet Madara was 85 and Obito was 13.
Madara is currently 102 and Obito is 30.

How do you know Madara's age???

 

[Simple Math]

and then you find out in few chapters madara stabs Obito in the back and he's like "fk you bch i dont need you anymore.. i just rescued you to keep an eye on Nagato so i could get revived"

 

['Nāpalm]

Madara could of had a lil something going on with Mito U_U