Hey all something crazy went on today. I was bathing my 2 yorkies, the male is only 12 weeks old today, having only 5 weeks with us. The female who is 2 years old and menstrating began to attack my boy puppy. They normally play fight and wrestle around but she was actually attacking him. WHY!!!! Is this normal for a menstrating female? Is she jealous? She was attacking him over and over! Needless to say she is locked in her cage, cause Daddy is fuming

!
Please help me on this matter.
Is it normal?