If you’re asking the question, that means you’ve already waited too long. It bothers you, so you have to let her know before it causes tension or irreparable damage in the budding relationship. If it’s bad for you, then it’s bad for the relationship, which means it’s not in her best interest to let it continue either.
There are a lot of good ways to help her get the idea. The key is to make the message fun, light or humorous. A friend of mine used to plant a big kiss on his girl’s lips whenever she mentioned her ex. If you have a carrot stick or tortilla chip, stuff it gently in her mouth with a huge smile on your face.
You might have to spell it out for her if she doesn’t pick up on your cues. Tell her it just makes you a little uncomfortable being reminded that she hasn’t always been your girl, and it’s kind of a buzz kill right now. Let her know you are willing to sit down and take a whole day to talk about her history and yours, and you both can clear up any unresolved issues you might have. It’s not a matter of jealousy. It’s just that this is the time for a fresh start and a new beginning.
