I know theres lot of uncertainty regarding COVID but please attempt to pretend it doesn't exist for this scenario (if only!!)
I am getting married in a year, my bridesmaid is organising my hen. I absolutely know MN hates abroad hen did so I am potentially setting myself up for fire here but hear me out.
SIL has said she just can't come to my hen do abroad. For reference, she wanted her hen abroad and all her friends have hens abroad, she loves it and goes on them whenever asked. She goes away several times a year and has been abroad twice this year (not taking her now 10month DD - newborn at time) and has been on 2 UK staycations this year with another next week (not taking baby again).
Her excuse is money. The hen isn't somewhere overly expensive but of course would not be dirt cheap. She is currently wanting to buy a brand new car as she's quite obsessed with appearance. Regularly flaunts and discusses their expensive tastes and MIL has given them a disproportionate amount of money as a gift much to DP's upset (he doesn't think he's treated the same as SIL).
Now I'd completely accept anyone giving this excuse except her. When she got married I'd just left university. I had an important professional exam in a week or two following her hen and didn't have the money - but when I tried to explain that she lost her cool and essentially guilted me into it, that was £300 each (then about £100 more for travel and food but I did that as cheaply as poss!)
I feel it's a bit hypocritical. I'm annoyed at making so much effort for little in return.
Both her and DP are doctors and their current joint salary is 6 figures - they got a large chunk of their house gifted to them so their outgoings are less than ours. They don't pay for childcare as MIL does it despite living 2 hours away.
We haven't fully settled on abroad because of COVID. I was just annoyed as she will not come on a hen for the cost which is at most equal to the cost of her own hen.