Concern

I don’t really know where to post this and it’s racking my brain if I should be concerned. We are a blended family and with our child I’m starting to see the less care for her than his child from another relationship. Examples are with our child he is not washing her sippy bottle that has milk in for her and used in the morning he puts water in and says it’s clean. She is constantly ill and I am now worried I have found this out. He is taking her out in -1 temperatures with no hat or gloves yes she has a coat but her sister is wrapped up for her age He ignored her when he comes in focused on mum but doesn’t sit to play with her walks off doing his stuff and speaks to her when mum pulls him up for it He left our 13 month in the car to chase mum down the road in an argument when it was his time to have child and mum was trying to de escalate the situation Our child is ill at the moment and chokes on own snot his attention when she is sleeping and struggling to breath she holds her breath in the night it does worry but he ignores it or leaves the camera volume on silent and not even on her so you can see He never wants to bath her even when she needs her hair washed robbing off it looked fine There all sound stupid but he pays more attention to detail with his other child and her basic needs and some Should I be worried on these brief examples ……. I don’t know