For the past couple of months I have noticed a change in my cats behavior. She used to be very loving and attached, especially to my boyfriend. She would follow him everywhere and she slept in between us every night. She was just a normal cat. A couple of months ago after she went into heat for the first time, she started acting like she was afraid of my boyfriend. Recently, it has gotten worse. She walks around the house crying and I have seen her slinking around like she is trying to hide. She has become very attached to me and doesn't seem to calm down until she can hide behind me or is sitting on my lap. I have also noticed that she has become very vocal. Every time she comes near me she starts meowing and chirping, and when she is hiding it sounds like she is crying and very afraid. I don't know what has happened. The only significant changes I can think of would be her getting spayed and the arrival of our other cat, but they get along as far as I can tell. He is a few months younger than her and plays kind of rough sometimes, but they eat and sleep together and she grooms him often. Does anyone have any idea of what could possibly be going on? Im getting really worried about her