My dog with babies! And should I continue watching this child..

Savana • Married to my wonderful husband❤ my babygirl is due in March 👶🏽
So I watch 2 1 year olds and the one loves dogs and she gets knocked down a few times just because baby to dog and the tail wacks her, she is also around other dogs at her home. Her mom is completely fine with me having my dog out while she is there my dog is very curious all he does is sniff and lick her! But the other baby her mom comes in and I let Marley out to her used to her bc she has never met him and my sweet dog comes and sniffs and licks her. And the mom which is a good deism of mine gets very protective and I'm like he isn't doing anything to her. So I brushed it off and locked him up(note in my own house) the next night he comes up sniffing her and the lom has the audacity to keep hitting him with a blanket to get him away from her(note he is doing nothing) she says that her daughter likes dogs but not mine but it's because you keep talking and hitting my dog making her afraid of him. Secondly she never pays me for watching her. Question is should I watch her daughter anymore?