Leave a voicemail message saying that you have to talk to her about how hard things are becoming and you want her to know because when you get there you may just not want to talk about it. Tell her you need to talk about it and she can hold u accountable. I used to do that on sunday when I had something to talk to her about. I would call and say I need to talk to you about this and I am not sure if I will be able to or not.