Separation anxiety

My baby girl will be 9 months this month. We are living with my in laws due to Covid. I am a stay at home mom. Within the past week she has started to completely ignore me and only wants her aunt. This is starting to really get to me. She will walk into the room and my baby will start crying for her. If we are all in a room together, she will start fussing for her. I just do not understand. She will start reaching for her even when I’m holding her. Maybe I am just being too sensitive about this whole thing, but it makes me feel like I have done something wrong as a mom. Could she be confused and think that her aunt is her mom?

It feels like she is rejecting me and she only wants her aunt for some reason. I just don’t know what to do anymore.