Is it immature to be jealous of a celebrity your girlfriend is kind of in strong "like" with?

[5Deck.com]

Yeah, she's going a little overboard with her celebrity crush. I mean, my wife likes David Duchovany and another actor (Lol, I can't remember the other guy's name, the one from Silk Stalkings) but she's in love with me and she expresses that regularly so it doesn't bother me at all. But if your gf is paying more attention to a person she will never be with than with you that's like a form of emotional cheating. It's okay to have infatuations with celebrities, but not to let them interfere with real life relationships. I would be just as offended as you are by the way she practically ignores your attempts to draw interest to yourself. Tell her how you feel and don't let her off the hook in understanding and trying to work on the way she casts you aside or she is not really taking your relationship seriously and that's not a good sign.