But my take on his attitude is...
He believes the love of kriya is their strongest bond, but pratigya innocently was talking in general that a child makes the bond stronger.
Hence he felt let down thinking his love is not enough for her. It's a misunderstanding, bec p made a general comment which was not specific to them.
Komash have a child but it doesn't mean in all cases that a child can bond a couple or make it more stronger, in some cases it only binds.