Ranting!!

Since we had a baby, my husband is sleeping with our 23 months old son in another room because baby is waking up frequently all night so I don’t want it to affect toddler’s sleep. So my husband literally has ruined all my efforts to make his bedtime routine. He now seeps at 1130 or 12 midnight. (He’s still awake) . When I went to check why he’s still awake , I saw him watching nursery rhymes on YouTube on his mobile while my husband is busy on laptop. My heart is so full of sadness and I want to cry . All day when I get a chance I clean all the stuff and he won’t care while using toilet. I hate to clean his shit off the toilet seat . Am I overthinking or what ? I’m loosing my mind .