What can I do?

14.  What can I do?   

Here’s an old fashioned concept: Restitution.  Ask them what you can do to make it up to them.  If restitution is appropriate do more then they ask or expect.  Restitution will make your apology even more genuine. 
(To be continued.)

Give them room

13.  Give them room

What if they can’t accept your apology?  Accept them where they are and give them time.  Ask if perhaps you could get together at a later date.  Remember that even if you do your best you cannot control their response.
(To be continued.)

Ask forgiveness

12.  Ask forgiveness

This is powerful!  Akin with humility, lowering yourself to ask forgiveness proves our genuineness.  It is also powerful for the other person because if they can accept your apology and forgive you, then they are unconditionally releasing you.  The relationship will likely experience a large growth spurt and there will be no residual awkwardness. 
(To be continued.)