cultural differences

Okay so I've been talking to this guy and we've been talking for a while now. He's pretty much perfect but we have a lot of cultural differences. It doesn't bother him or me but it's his parents. His parents are polish immigrants and my mom is from Italy. I'm a very open and emotional person and he's really closed off and I think it has to do with the way we were raised. He also wants me to have dinner with his parents and I can't understand their accents because I'm so used to Brooklyn- Italian accents. I also want to know what to expect. He told me his parents aren't thrilled that I'm not polish. I just need help cuz I really like this guy. Any advice is good advice.