Welcome to the YT forums.
I know you have to change this behavior immediately or else it will get worse. I'm not sure how but I know others will chime in soon. I also have a little one that will not leave Ahi alone. But I guess I lucked out in Ahi. She doesn't care. She lets my DD do anything to her. I'm the one telling my DD to leave her alone. Ahi is like her bff, if my DD cries she will be right there kissing her and calming her down. She won't let you take her away from my DD until she is done crying.