Those with white/Anglo partners, what cultural differences have you experienced and how do you deal with them?

I have an Australian-English partner and I love her so much, she’s honestly one of the best things that have ever happened to me. There are some differences I have noticed though, mainly related to affection. It’s like she has trouble being affectionate with me when we’re around people we know/friends and doesn’t verbally express her feelings as much as me. What’s your experience been like?