Even though feelings may be gone, it can still be hard to let go of the past relationship. Hard to let go of the past and memories.
How can you help her get over him? Don't mention him, help her have a good time. We let go of the past best when our mind is focused on other things.
Don't cry, don't regret and don't blame
Weak find the whip, willing find freedom
Towards the sun, carry your name
In warm hands you are given
Ask the wind for the way
Uncertainty's gone, your path will unravel
Accept all as it is and do not blame
God or the Devil
~Born to Live - Mavrik~