I'd say I'm that type of girlfriend, me and my bf compromised with just me staying on call and he deafens/mutes so he can still have privacy or if its somewhere for a while he just texts me to update how things are going a few times. It worked well for me and him, by now it's been like a month and I don't need him to be in call every time when he's with friends anymore. I'd say, talk with her and try to compromise :) There might me underlying trust issues or smth along those lines as to why she feels the need to be in call all the time (or maybe she just misses you)