"In the end we only regret the chances we didn't take." So be risky because you would rather look back and say I can't believe I did that instead of I can't believe I didn't do that. I do regret that amazing chance that I didn't take.
If they are emotionally gone, God didn't intend for them to stay. Let go and keep moving forward. Never turn back. Letting go can be easy. Forgetting can be hard. Let go of your pride and ego. Let yourself be happy.