This is a great opportunity to show your daughters some critical life lessons--- we can be hurt and it's ok to express that hurt... but our own happiness and our view of ourselves is in our control--it is not dependent on someone else's view of us! We can get past the hurt of a breakup and still feel strong and worthy and good about ourselves.
I think it's ok and healthy for them to see that this makes you sad. .. but also that your life is not over and even though life will be different, it can still be good and happy. Forcing yourself to show them that may help you get through it too. ..
