Should I feel discouraged as a parent by my child’s father saying this?

My son is four months old and although I’m his main caregiver and he’s with me more than his dad, I feed him, change him, read to him, groom him, talk to him, I can make him laugh etc I can’t make him smile like his dad does but I never mentioned it because I didn’t want it to be a big deal because he is just a baby and everything is new to him. Even who he chooses to be his favorite person or who he chooses to smile the hardest at, but my child’s father and I had a little argument and he mentioned how our son smiles harder and more at him than he does with me and it hurt and I also feel it was unnecessary but at the same time maybe it’s for a reason. Maybe I focus so much on being his mom that I forget that he’s still a baby that needs to stimulated. I play with him, tickle him, talk to him etc but maybe it just isn’t as good as his dad.

Should I feel discouraged as a parent by my child’s father saying this?
Post Opinion