Help whether to invite these colleagues!

Firstly a huge thanks in advance for any answers I receive!!


My wedding is in July 2022, it was originally July 2021 and I sent the save the dates to original guest list 2 years ago. It’s on a Sunday and 2 hours away from where I live/work so for most invitees some ‘effort’. I am getting ready to send invites and there are 2 work mentors/bosses (& their partners!) that I just can’t decide on!
Our guest list is around 100, but only expecting about 80 to actually come. 8 of the invitees so far are colleagues/ex-colleagues from my current company and where relevant their partners. All of those people have long known they are on guest list.
Some relevant facts on these extra two people (4 guests with their wives):
- both are mentors to me I work for directly a lot, I really like both of them and they have both done a LOT for my career.- they are good friends with each other and think it would be very hurtful to either to invite one and not the other, it’s either or both.- they are also good friends with a few people I’ve already invited so wouldn’t be on their own.- I socialise with them outside of work relatively often in small group unofficial post-work drinks etc but never meet up specifically for 1:1 socialising (although why would I, they are married men older than me lol.) everyone else from work I’ve already invited I meet up with specifically 1:1.- mentor A I speak to a LOT socially (basically every day) even when we are not directly working together. He is famously quite guarded about his private life and no one from work has ever met his wife. I’m not sure if he would come - mentor B i don’t really speak to often on the daily - would normally only reach out to a reason but when we do meet up we have very long and deep conversation. He’s dropped a few hints about my wedding (although don’t know if he’s joking!!) and I think it would mean a lot to him to be invited. He often brings wife to drinks and it was before I joined company but invited a lot of work people to his wedding - I obv talk about my partner a lot (& about them to my partner) but neither of them have met him- 4 extra guests is obviously going to have impact on costs but we can afford it- I am someone who cares a lot about what people think (even if I shouldn’t!). Conscious that this means a high % of people there will be my colleagues and will people or my colleagues think this is strange, or will both these mentors personally think it’s weird that I’ve invited them !- fiancé is being classically laidback and said it’s totally up to me and can do what I want
I honestly can’t tell you how much I’ve gone back and forth about this in the last 6 weeks or so, so would appreciate any insight!!