AITA for being an AH to my husband?

We -Husband (M36) and I (F33)- were playing catan with my brother in law and her wife (both 42). I can say we all are fairly competitive but between brothers they never messed with each other- is like an unspoken rule. In this version of the game you can remove some tiles make in it impossible to keep using that space in the board. So my husband had the choice between take down my tile and his SIL with a 12 and his brother’s tile with a four. I asked him not to do mine (he previously messed with my game and I with his) and he still did arguing that 12 had less probability to appear after rolling the dice. After that I was kind of petty because it is always the same when playing a game with his brother, he never plays against him, always against me. And that is what bothers me. Not the fact that you mess with other people’s game – that’s kind of the point in most board games – it’s that he always chooses to mess with mine and he is very lenient with his brother. Eventually I won the game but I’ll admit I was quite vindictive and started to do all my moves against him. On the evening we were talking about bringing a game to a cabin we are about to spend the weekend together. After the game ended the wife said that the game was pretty good and I said that we can bring it to the getaway to which my BIL replied with “but tomorrow don’t play mind tricks to my brother”. It really pissed me off because it really makes me feel bad whenever my husband chooses to be competitive and sometimes mean to me but lenient to his brother and yes I was being petty but imo not an AH