I don't mind my girlfriend knowing where I am because I'm not cheating on her. The only time it gets a bit weird is if me and my mates are doing something a bit stupid, one time we went to one of those trampoline centres at like 10:00 p.m. because they were having an adult night. We pushed to get massively over excited about trampolines and I ended up getting questioned about it in the morning. But hey she definitely knew I wasn't cheating on her there she just thought I was being weird