Are you and your partner on same page when parenting involved?

Tracy • I am about to turn 35 eek it's freaking me out I love my son who's 4 not saying sometimes i love him less when he goes to his grandma's sometimes we need a break my physical limitations make it difficult! Anyways love movies tv ect...I really hate filling
Ok my husband and I have a 1.5 yr old and I told him before Simon ever came to be that to never insinuate that I'm a bad mom and he's constantly disagreeing with me in front of him and I say wtf lol and take it as him saying I'm a bad mom any advice on how to make him understand that we need to b on same page I have or will never call him a bad dad or undermind him but he has his family's genes and they are type that would complain about a rainbow especially his mother and ken my husband has same issue with everything I have only ever had this one complaint about him but anyways for example Simon went face first out of his wagon other day after I said are u ready to get out he just dove out as toddlers do have accidents i started freaking ken comes out grabs him out of my arms while I am making sure no trip to er is needed btw Simon is all good just a scratch on his chin but my husband blamed me said I should have known or watched him better and I felt horrible anyways bc he got hurt on my watch still it was an accident and he made me feel so much worse and even was talking crap under his breath any advice on what I can do to make him understand ?