Nothing else matters when we know who we are in God. Any abandonment, dismissal or spurning that we may endure no longer matters when the value that we are to God through Christ Jesus becomes real to us.
How we are accepted, received, approved and validated by our Heavenly Father everyday can overshadow any rejection that we may encounter. We need to give in more to God's love, which overshadows all, and live in the truth of it everyday.