These are the small moments that define a relationship. Your gf wants to have a quiet morning browsing her phone and you want to have a conversation. It is up to you if that is ok or not - your relationship should make you happy. You can decide that you are happy to give her a quiet morning, or you can decide that it makes you feel too weird and find a new relationship with someone that you are more compatible with. Every relationship involves compromise but only you can decide what compromise is right for you.
The vehicle was empty, it wasn’t carrying anyone.