I (the brother) live with my parents and sister. My sister has been dating this guy since early 2024. He’s 11 years older than her, which I do find icky but a girl her age dating an older guy is pretty common here so whatever. My parents are cool with it, actually I’d go as far as to say they’re actively encouraging / fully supporting the relationship. They love this guy mostly because he’s well educated and has a stable well paying “prestigious” job (lawyer with his own practice - so relatively well established too), is from a good, wealthy family; doesn’t drink, smoke, do drugs; has a calm and stoic demeanour, is a good influence on my sister, etc. My personal opinion of him is that he’s cold and rock-like; dry humour and domineering. I don’t particularly like interacting with him. I feel like he’s judging me & sees me as inferior.

My parents have allowed him to stay / spend the night with my sister at our house since the beginning. It ranged from a day/night, weekend, week… but his stays always had a deadline - until recently. Well, he stayed over for winter break (Dec-Jan) and just… never left. It’s February now and he’s still here. My parents still stay he’s just “staying over” and not “moved in with us”; but cmon now… he paid bills, buys groceries, etc… I feel uncomfortable having him around all the time. He’s not the warmest person to be around. And with this man around I feel like my personal space - privacy- has been invaded. I tried to tell my parents how I feel, but they just tell me I’m “antisocial”. Discussing with my sister is a no go as she’s madly in love with him. All of them are like does he bother you in any way? And for them “his presence” is not a valid answer.