Parents won’t let me sleep at bfs house (23F)

My parents have a huge problem with me staying over at his.

For context I have a boyfriend but they don’t know about him because I’m not allowed to date. I’ll go out once/ twice a week and then stay the night at his. (I tell them I’m with my friends).

My dad is going mental and saying I’m being too wild and that I’m taking advantage of him giving me freedom.

I am working and technically I could move out. But I’m staying at home currently so I can save up some more money. If I were to move out now I’d have to sacrifice a LOT. This economy is rough.

I understand the ‘it’s their house, their rules’ argument but it’s not like I’m being disrespectful.

Whenever im going out, if im going to be late I’ll either stay at my friends or with my bf.

I don’t come home super late or cause chaos - I’m just staying over at my bfs.

Surely as an adult I should be able to date and be in a relationship?

The only reason I’m staying home is because of financial reasons but I feel like this is getting ridiculous.

My parents know I have a job but they think it’s part time. I haven’t told them it’s full time so I’m secretly saving the money on the side.