Been lurking for a while, but want to know if I'm BU.
Been with my partner for 6 years, lived with him for 2. I have 2 children from a previous relationship, aged 13 and 10. He has a just turned 17yearold. He lives with us as his mums partner ‘didnt like him’, I agree that it is wrong for his mum to abandon him, and it isn't the case that I don't like his son here as I do, just to add.
His son is lazy, I assume it's being a teenager but not sure yet as my DS hasn't been a teenager for very long. His attitude is awful, and whenever he argues with DP, he does something for ‘revenge’ for example, drinks alcohol, uses his bank card without permission etc.
Last night, I asked his son to not swear around my DCs, he then started an argument over it by saying I couldn't tell him what to do etc, DP then told him not to speak to me like that, his son then walked off upstairs in a sulk.
We went to bed as usual, but when we got io we noticed DPs car keys were in a different place to where he left them, he asked his son about it (not accusing him of anything), his son then admitted that he drove his car last night, DP told him that they both could've gotten into a lot of trouble as his son doesn't have a license, his son said he didn't care and then DP just brushed it off.
I asked DP why he let him get away with it and he said that he didn't want to annoy his son anymore.
I have younger children who could copy his behaviour in a couple of years, and he isn't setting a good example for them. AIBU to say it's me or his son? As in, if he doesn't start disciplining his son properly, me and my DCs are moving out.