So DP and I have a five month old DS together, he also has a 14 year old son who I just don't like. (He isn't my 'step son' as such as he was older when me and DP got together and he has his mother, I'm dad's partner to him.) I find him rude and babyish, and just generally unpleasant. However DP is a totally different parent from me, where he thinks the sun shines out his kids arse (he has older kid too), for lack of a better phrase. This means that when DP's son is rude there's no discipline which just makes it worse. If anything, DP becomes quite unpleasant company when he's around his son as he turns oddly immature (I'm not talking about silly teenage immature, I mean not being rude and somewhat nasty and thinking its funny!)
I totally get that 14 is an awkward age for teenage boys and its not known to bring the best out in them, but in my opinion that's not a justification for all.
For example DS was reaching for his fingers and trying to bite them, as babies do, and DP's son shouted ughhhh why does he keep doing that he's doing my head in!!
This kind of thing is regular, moaning when LO cries etc, so not a one off thing taken the wrong way. And as always DP just laughs. I mean he's 14 not 4!
I dread him coming over and when he comes on any family days out with out us as DP lets him rule the roost so for me and my DS, the bratty behaviour just ruins it. I have subtly mentioned bits to DP but I'm aware I need to be careful as at the end of the day I don't want to be directly offence to his son OR his parenting skills.
Any advice or anyone been in a similar situation??