Name change for this, as I don't want it linking to my other posts.
I met this woman (my neighbour,) 3 years ago when DH and I moved into this village. DH and I have been to the pub a few times with her and her DH, and she attends 2 of the same village groups as me. She is 2 years younger than me (I'm 52, she is 50,) and she is very proud of the fact that she doesn't work, and never intends to again.
She says she 'retired' at 46 after 30 years of working and has 'paid her dues.' She said it's wonderful to not have to work, and to never have to work again.
She lives in social housing (nice cottage too, on the edge of the village overlooking fields,) and her DH works part time - 4 days a week in a supermarket, and I just can't fathom how she does is/how they do it. They have a 5 year old car, and a 25 y.o. DD who is getting married in September, and they're giving them £5000 towards the wedding. They have also just booked a holiday to Greece for June!
I've said a few times 'you must be good with money, and very good at saving,' and even once said 'how do you do it, do you cope OK with one wage?' She just smiled and said 'we do all right. I have got my own income thanks.' What income would someone get in their late 40s? 
Can't be a pension!
I am actually annoyed at myself for feeling this way. I have another 15 years to work in a job I absolutely loathe. DH and myself don't have a pot to piss in, we have a car that's 20 years old that's held together with sellotape, and our mortgage makes up 45% of our joint salary(s.) DH and I work 45-50 hours a week some weeks, and never get any surplus income because there is always something to pay for, and ALWAYS something going wrong with our bloody house.
We have mutual friends in our 2 groups, and she is the only one who 'retired' at 45! I have spoken to a couple of women in the group about this, and they said it's nobody's business but hers. I know they're right, but I can't get rid of this deep resentment I have for her. She has the best life; finished work in her mid 40s, potters around their huge garden, goes for walks and bike rides, meets up with friends and family/her DD once a week, draws and paints and writes, sunbathes all day (some days) on the lawn in the summer, and sometimes lies in til 10am! I have been at work for 2 hours at that point!
AIBU to feel irrationally annoyed by this woman? She seems to have a blessed life, and I don't know how she does it. It CAN'T be an inheritance or big lottery win, otherwise they wouldn't be in social housing would they?