AITA for grilling my sons new girlfriend and telling him I don’t approve?

My son (m20) has been dating a girl he goes to university with for about 6 months now. She’s an international student from New Zealand, but has family here so is staying with them during covid-19. Due to lockdown restrictions and such, we hadn’t met her until a couple nights ago, when I invited her over for dinner with my family. We had FaceTimed a few times but not spoken a lot.

My husband and I are very Catholic and traditional, but spent a lot of our 20s travelling the world, including New Zealand. We visited her hometown so asked her a few questions about it which she happily answered, but when I asked about her Maori heritage and family, became quite uncomfortable and said she didn’t know a whole lot about it which I find hard to believe. We asked her if she was religious, she laughed and said no. We asked her about her degree which she seemed very passionate about, but it’s a fashion degree which isn’t exactly going to get her very far, in comparison to my son who is a law student.

It’s clear she loves my son and it’s mutual, and my other children adored her, but I don’t think she’s the right fit for my son. Her parents were both 16 when they had her, and she’s very open with the fact that they have a strong dislike for each other and haven’t spoken since she was 6 months old. She also seems to have a bizarre relationship with each of her parents.

After dinner she went and played monopoly with my daughters and sons, and made a couple crude jokes, as well as laughing at my son, her boyfriend, when he lost. My son asked me if she could stay, and I said she could as long as she slept in a separate room which he said was ridiculous as they’re both 20 and are living together next year. She decided to leave as she “didn’t feel welcome”.

After she left I told my son I didn’t approve and that I could set him up with a nice girl from my church if he preferred but he said he loves her and was furious I would even suggest it. My other son, who’s 16, heard me and said he really liked her. My husband said that even if I felt like that, I shouldn’t vocalise it because it’s clear my son loves her. I understand that but he should be with someone more suitable for our family in my opinion. AITA?