Boyfriend told me he don’t want my child around his?

We recently moved in together the first week his daughter (3) came over she had stitches from falling and he told me he didn’t want my daughter (6) playing with his daughter until she was fully healed because she’s clumsy now she’s fully healed yesterday my daughter came into my room just to say hi to his daughter and he pulled me to the side and told me he didn’t want her playing with his daughter and now he closes my room door when he has his daughter here
Last week he even seemed bothered that she was just sitting down watching his daughter tablet with her

Is this a sign he don’t like my child?
Boyfriend told me he don’t want my child around his?
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