I get frustrated [I Write What I Feel]

I love my clients but sometimes they have no boundaries. I get calls on weekends and one particular client likes to take up my entire day. I think she has called me at least 6 times this week and I saw her Thursday. For more then 3 hours. I don’t take calls after hours so I do make her wait until the next business day. I have a missed call from her today. She totally expects me to answer the phone on a Saturday.