Should I put a passive aggressive comment? Or too petty?

Soo long story short I am Mario for Halloween every year. Last year my ex was Luigi. I posted a pic on instagram with the caption “Mario AGAIN but this year I found my Luigi 💕” a couple months ago my ex cheated on me. His new girlfriend followed me on instagram 🤨 i unfollowed him, he still follows me. I have so many followers who are friends of him / were friends of us. Since breaking up I got a dog. I bought a dog Luigi costume lol. SO should I post on instagram with me and my dog as Mario are Luigi for Halloween but put the caption as something like “upgraded Luigi this year #iykyk” or something like that??? Or Luigi is cuter this year 😂 or is that immature and too petty?

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