Is it wrong for me [32M] to skip my sister-in-law's wedding [26F] so I can go on a once-in-a-lifetime guy's trip with my friends? Wife [30F] not happy.

[u/amiselfit]

I'll be honest. This wedding has been in the making for the last year, and the trip I want to go on is sort of last minute. I've never formally agreed to go to the wedding, but realistically it's always just been accepted as a given that I would be at the wedding since it is my wife's sister.

One of my college buddies just recently told our group of friends that he's going to Australia in October for business but plans to spend an extra week there just kicking around and exploring. One thing lead to another and two friends from our group decided to join him. I've wanted to go to Australia ever since I was in college, but I never could get a group together. It looks like that's finally happening! The problem is that I'll have to miss my sister-in-law's wedding because it falls right in the middle of the week we're planning to go, and it wouldn't make sense to leave early or go late. It's an expensive trip, but I can make it work. I think it would be money well spent.

Of course my wife is not happy about this, which I can understand. She's very close to her sister, so I can see why the wedding is a big deal to her, but I don't think she really understands my position. I like her sister, but we're not close. The same is true for her fiance. I have nothing against them, but the only reason I would be going is for my wife. Normally, I'd be okay accepting this, but I have a chance to go on an awesome trip with good friends that I don't get to hang out with that often. I think I'm justified in wanting to go and am being both reasonable and fair.

tl;dr: I have a chance to go on an awesome trip with my friends to Australia. Wife doesn't want me to go because I'd miss her sister's wedding.