YANBU. Its such a horrid, self-centred thing to do. Handbagging somebody else's distress and making it all "me me me"
I've a friend who does this, we used to laugh about it but nowadays as we are getting older, its not so funny. Anyone she knows even remotely who has passed away, she starts a FB thread handwringing about how shocked sad distressed she is "Im just sitting here shaking and crying". Cue looong thread "oh hun so sorry, thinking of you at this sad time, so sorry for your loss etc..." Its not HER loss, she's a grief bandit.
Last year a DJ we knew passed away...thread after thread about her shock and upset, until a couple of people actually said to me (away from screen) "sorry to hear about your friend's close friend passing away like that, must be horrible for her". But he isn't a good friend - she knew him very vaguely, just like I did. She doesnt know his family at all but there she was, full centre of attention.
Its morbid I know, but on day of funeral I looked at FB to see if she would do exactly what I thought she would do - at the funeral she used mobile phone to take photos in the church, records parts of the service, give a running commentary of what was happening too, and at the graveside - the thing that made me distance myself from her completely - 1st a pic of the empty plot, and then the coffin being lowered into the plot.
So essentially she was at the service as a sort of show-off roving reporter then.
Grief bandits are sickening. We're aged 51 by the way, you'd think she'd have some common sense and empathy by now but nope - not forthcoming.