Sorry you are going through this right now. It all depends on the circumstances in your INDIVIDUAL situation. If you are going through a life transition like divorce or something else and he truly loves you, then HE should understand and support you. Yes, you were wrong for lying, but that is totally fixable. If he broke up with you without understanding your circumstances then he was wrong or he doesn't really love you...

Is he "wrong" to break up with her? I don't agree - It was his choice because it's his life. Some people don't tolerate lying at all, especially if they have had bad experiences with people who lie; that's their decision and it is right for them whether there are "circumstances" to understand or not...

The way I would look at it would be...if she will lie about something like this, just what else would she lie about. Trust and honesty has to be part of the foundation for a solid healthy relationship, that doesn't happen by lying. I probably would have listened to the excuse for lying, maybe even understood it to a certain degree, but I would still say goodbye...