Is it wrong for me to meet with my boyfriend's niece's case worker?

Do you think I was wrong to make an appointment with my boyfriend neice's case worker about the problems I am having with her without talking to him first even though I have asked him numerous of times to talk with her?

I think that is wrong. he is your boyfriend, you should trust each other and tell him your actions especially as it's to do with his family. I would be very upset that ud done that behind my back if it was me. especially as ud asked him numerous amounts of times, clearly means he doesnt appreciate you doing it xxx