Completely Miserable

Just bought a house and moved in with my SO 2 months ago and I’m completely miserable... I feel like he gets what he wants and that’s it. He hates my mum and if she says something to me or tell me to do something even when I know it’s wrong he assumes every move after that is because of that. I’m scared to talk to him because it all just ends in an argument. I don’t know how many times I’ve talked to him about playing less PlayStation and spending more time with me, but it doesn’t register. I want a dog and I have wanted one for months even prior to buying the house, but this seems to be the biggest issue for him... even though he’s said it’s fine, I feel like this is all for him and his feelings and I don’t get any consideration from him. At this point I feel like this was all a mistake.

I’m lonely, miserable and confused someone please help?