I'm jealous because of how much we let my sil hold Delos and everything but we have to practically…

I'm jealous because of how much we let my sil hold Delos and everything but we have to practically beg to hold her daughter. I know she isn't a happy baby but she can't be kept from family members like that or she is not going to thrive too well. She will let others hold her but not her aunt and uncle? It isn't right at all.