A little context as I know otherwise this may sound odd. I am a teacher at an independent secondary school in the north. A few years ago I was really hating my job, i was teaching three A-Level subjects (Maths, Further Maths and Economics), had 3 small children, my mum was unwell. It was a time where I really wanted to quit and give up.
One student (the only girl in further maths and economics) was in all 3 of my A-Level classes, we developed a positive relationship and I ended up taking up a bit of a pastoral role with her too, she was struggling with her mental health.
She went on to study a related subject at a top university, then a masters and is now in her last year of her PhD in a related field. I've kept up with her progress and as a teacher I think she is possibly the student who I'm most proud of. There were days where my main motivation to go into work was knowing she was relying on me being my best so she could be her best and now I feel like I've seen her achieve that. Anytime I'm in London we meet for lunch or coffee, when she comes back up north she will pop into see me at work with cakes or a gift and to see her other A-Level teacher. This ex-pupil means a lot of me.
Today I received an invite in the mail for her wedding later this year. She's getting married in London, so would be a case of travelling Friday after work and back up the Sunday. Her other A-Level teacher has also been invited. My children are now between 10 and 16 so don't need me at home as much as they did. The issue is the Monday after I leave to take a group of pupils to Italy for a 5 day trip.
My husband thinks if I'm effectively gone Friday-Friday I'm being selfish, as he will be solely responsible for them for a whole week. I've offered to arrange for parents/friends to sort the kids but he still isn't happy. He said he'd get it if it were a friend or family member but not some "random ex pupil". This isn't the first time he's had a problem with this student, her graduation was an issue and several of our lunches have been a problem too.
AIBU to go the wedding even though my husband thinks it selfish? Or since she isn't family or a close friend should I put my family first and be there for them?