Every year, for birthdays and Christmases, this person buys me LOADS of lovely, thoughtful presents - not massively expensive, just nice things that she's clearly put effort into finding and wrapping etc. The problem is, for the rest of the year we never speak to each other or see each other. She is someone I used to know reasonably well, as we moved in the same circles, but we were never actually close friends - we did exchange little gifts though, as you do with some groups of friends. Over the years, I have tried to engage with her by phoning to say thank you for the gifts, emailing, facebooking, texting, but she never responds - I don't just say 'thanks' either, I try to engage, ask her questions etc, as I assume she likes me to go to this effort! Obviously I always get her something for birthdays and Christmas, as I know she will get me loads and would feel bad not getting her anything. But I do resent having to buy presents for someone who can't be bothered to properly keep in touch - Christmas is too expensive as it is. WWYD? I am very close friends with her sister and don't want to upset either of them.