Workmate being really mean because I'm going on holiday and she isn't.

[MojacarSunset]

I'm going on a family holiday to Spain next week with dh and 2 dc. My workmate has been making digs at me for weeks every time anyone mentions the holiday, I'm not talking about it but it comes up naturally when planning meetings/work etc as someone will ask when I'm off, that kind of thing. Every time she has a dig, "It's alright for some" "I wish I could afford a holiday" "Oh yes, your going on holiday"............it's driving me nuts and I'm biting my tongue!!!
Workmate works more hours than me and has 1 child who her mother looks after for free, we pay for childcare before/after school for 2 children!
Our husbands work in the same service and are on the same level, their combined income will be a bit more than ours as I work fewer hours.
The only reason we can afford our 2-week self-catering in Spain is because I budget carefully. Weekly shopping is £100 for everything, we don't have takeaways unless it's a birthday or special occasion, me and DH both take food to work and don't tend to buy fancy coffee and snacks.
I don't moan when she turns up in a new car or bangs on about the latest fancy meal she has had. I'm happy with my choices but she is driving me nuts!!!!

Our holiday is costing us the equivalent of £50 a week, she probably spends that on coffee and lunch!!!

Isn't it a standard thing to say "It's alright for some..Oh don't worry about us lot slaving away" etc etc when somebody is going on holiday? I'd just laugh it off. And if it was said with malice, I'd laugh even more and say "Yes, I can't wait!"

It sounds like it’s nearly time for your holiday but just thought I’d offer a different response you could give her and hopefully shut her down and give her some food for thought. If she moans again you could say something like, actually we have to to be mindful of spending all year round to afford this holiday and budget to ensure we can go. So this is my luxury, you are getting what i consider to be lots of mini luxuries like eating out or grabbing a coffee and you don’t hear me saying, alright for some to that. And as PP have said, it is perfectly alright for her to choose that but you’re not there taking some of the shine off it for her so would she kindly refrain from doing the same for you.

The OP's colleague's comments don't sound much like 'banter' though. She sounds spiteful and bitter.