Because it makes the most sense as to why a mother wouldn’t spend the holiday with her baby and then not spend it with friends/family (if they split custody, and it was his day with her, I would think Kelsey would have then went to spend the day with people close to her). If we believe the information that we have as factual, we know that she dropped the baby off with PF. But why? Maybe to go run errands, but she had the baby with her doing errands, so why change from that? Assuming she didn’t plan to meet back up with PF that day, why did she drop the baby off? I interpret that as likely spending the holiday with someone else. If it were with friends, I feel that we would have heard them speak out by now. IMO, if she was with anyone else, it had to be someone new in her life that many people may not have known about. Also, if she planned to spend the day alone, why not drop off the baby first and THEN food shop? Food shopping with a baby is never a fun time, so I’d try to avoid it, especially if I knew I had child care for the day. I’d wait until my daughter was with her dad, then shop.