If mil rings to speak to dh and i answer the phone we always have quite a long chat. However, SIL has just called to dh and I answered the phone and the conversation went like this:
sil: "oh hello it's xxx"
me: "oh hiya how's you?"
sil: "am ok, is xx (dh) there?".
Ibu in being slightly put out that considering I have been with her brother for 13 years, and married for 9, "hello" is as much as she can bring herself to say to me?