She is visiting from overseas for a very short time. I never get to see her without her DH, or other family members present. I asked if I could have dinner with her tonight, she said yes. . When I double checked the arrangements with her, she asked for dinner to be moved much later (9:30pm). I suggested that we meet up for coffee at 9 rather as I can't eat that late and she agreed. Half an hour before we were meant to meet up, she texted to say she thought I was tired and so she wanted to cancel. I said I was fine, and really wanted to have time with her, but she said she was tired too and wanted to be fresh for tomorrow when she is having dinner with my brother (I'm not invited). I am so hurt by this, I haven't said anything to her, but feel like she thinks I am not important enough to speak to, or spend time with- yet other members of the family have had time with her. I'm going to see her with all the other family tomorrow afternoon. Should I say something or just let it go? Am I turning this into a bigger issue than it really is?