I was reading an email of my gf's from a long time ago before I even knew her but this guy that came down to see one of her friends at school stayed in her room and my gf ended up talking to him and wanting him sexually and stuff and while I was reading it, it made me sick to my stomach ans stuff and I was just bugged by it, but its just history should I even ask her if she still talks to the guy or not or what should I do just let it go?