The thing was that when I thought maybe she just hadn't calculated the time difference in the right direction, I was actually less bothered. But to find out that someone knows they are waking you at 4 am -- that doesn't show they are "thinking of me" or that they "care" -- it demonstrates a selfish, inconsiderate arrogance. It rather suggests they don't care at all.
I have an ex-friend that resembles this statement. In the past 5 years, I have put up with frequent late night/early morning calls for lots of reasons: being drunk, fighting with SO, wanting to talk, etc. No matter how many times I spoke with her and set boundaries she always "forgot" and called again. As I said in an earlier post, the final straw was Thanksgiving, when she called about 3 hours after I had gone to bed to "wish me a Happy Turkey Day". I might have excused it, except for the prior 3 days, I had lamented repeatedly the fact that I had to be at work at 5 am on Black Friday (and work a full 8 hours) and told her not to call after a certain time. Then she got angry because I had the nerve to be mad at her about it. This was a 10 year friendship, and I cut her loose over her selfishness. Like I said earlier, if this is a new thing, talk to her. If this is a repeat performance, drop her like a bad habit.
Sounds kinda mean, but its my 2 cents.