On an alt account as I don't want my boyfriend's ex to find my main.

My boyfriend Jonathan (fake name!) and I have been dating for almost a year now. He has a son called Lucas (also fake name) who is 10. Lucas is a sweet kid and he knows me pretty well. My boyfriend and I have been planning for him to move into my 3 bedroom apartment with Lucas for about 5 months, and he and Lucas moved in a few weeks ago.

Lucas is a bit of a messy kid and doesn't always follow important rules, so I introduced to him a sticker chart. Every time he does a chore, he gets a sticker on the chart, and when he reaches a certain amount of stickers he gets a prize. (e.g: 20 stickers = $10)

He was really excited by this especially because he didn't get pocket money. I asked my boyfriend if it was okay and he said it sounded good as long as the prizes came from my own savings.

We started using the chart and Lucas really enjoyed it. Then, my boyfriend asks me what it was, and I explained how it was the sticker chart that he agreed to before.

He says that he never agreed to anything like this and that I'm turning him into a personal slave. He says that I'm making my son pay to stay at my house by doing chores and that he's not a 'tenant'.

I tell him the sticker chart is not for me, it's for Lucas to learn about working, earning money, following rules, etc. My boyfriend asked Lucas if he liked the sticker chart and Lucas said that he loved it. My boyfriend got very angry about his response.

Turns out my boyfriend told his ex (Lucas' mom) about this and obviously she was infuriated. She said I was treating her son like a Roomba and that I'm not his mom. B*tch, my boyfriend has full custody of your son because you don't want him.

So, AITAH for introducing a sticker chart to my boyfriend's son?