For the past two or three years or so my DM and Auntie have gone out for a meal together one, sometimes two Tuesday evenings in a Month. This has never been an issue for me until one day my Auntie asked why I never go with them, why would I? I asked, it's their "thing". She then told me that she's always asking my DM to bring me along as well, but my DM always tells her that I can't come because I'm busy. I'm not busy, I don't do anything on a Tuesday night other than sit on the sofa and watch TV and she knows full well!
That's not the end of it though, it's got back to me that quite often my cousins (Aunties son and daughter) tag along to, and not just that my Aunties granddaughter (cousins daughter)! This has slipped out a few times when my mums been telling me about where they've been, and when I question it and say "oh so and so went as well did they", she'll reply "yes, but I didn't know they were coming as well" or "yes, but they gave us a lift in and we asked them to join us".
I'd love to go along as well, but never asked by DM, even though Auntie has made it clear she'd be quite happy for me to come too. I find it quite hurtful actually, why doesn't she want me to be involved?