I was visiting my parents in my hometown last weekend, it was the last time for a while because I'm moving to another country with DP.
My sister and I have always been very close and I wanted to catch up with her that weekend. Her DP and I get on but he is a pretty nasty character, will always swear loudly around my parents (they're not prudes but they appreciate a bit of respect when they take him out for dinner). We arranged that I would text her on the Sunday evening and we would do something.
Sunday evening comes and I text asking if she wants to do something, her reply 'who do you mean?' I said just the two of us because we haven't seen each other for 6 months and I'm about to move away. I told my DP that I want to see her alone for a while and he settled himself with DF and a beer to watch the football. No problems. Her reply was 'well I can't abandon my DP, he's been at work all day and I've not seen him'. They do live together and will continue to do so. They see each other all the time and had also spent the Saturday together all day. She then texted my DM and the conversation went as follows:
Dsis: Hi, what are you up to?
Dm: nothing, what about you?
Dsis: nothing
Dm: why don't you do something with baby , she leaves tomorrow?
Dsis: I'm busy 
AIBU to think that she could have taken some time away from him to spend with me? Or AIBU to want to see her alone before I leave? Dsis texted yesterday asking why I haven't FaceTime'd lately because she misses me.