If you went to an event with your partner where you were expected to wear formal clothes and they just wore a t shirt and jeans, how would you feel?

So you get invited to an event and you decide to go there with your partner. you know they dress formally there and you do but your partner decides to not dress up at all and just goes in a t shirt and jeans. how would you feel about them doing that?

If you went to an event with your partner where you were expected to wear formal clothes and they just wore a t shirt and jeans, how would you feel?
Embarrassed
Whatever. they can dress how they feel
I would probably not invite them to anymore formal wear events
other
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If you went to an event with your partner where you were expected to wear formal clothes and they just wore a t shirt and jeans, how would you feel?
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