Am I wrong for wanting to take over bathing?

I was trying to tell my girlfriend I wanted to take over bathing duties for our toddler. I work a lot and I feel he calls for her a lot more than being worried about me. So I brought up having bonding time with our son through bathing him and that I want to take over the task. She instantly went into a rage saying how I wanted to take that away from her then broke up with me for it. I feel I barely spend time with him and would like that intimate time to make my bond stronger. Am I wrong from this? I’m am going to stick with my guns but I would like to know the morality of it.
Am I wrong for wanting to take over bathing?
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