He walks out the door but his emotions of how he really feels about her won't let go. He tries to ignore those feelings and thoughts by focusing on the movement and sound of his feet on the pavement keeping all that he feels still tucked inside not letting go for her to see or hear as this would make him vulnerable.
We may have issues, but please don't throw what we have had all these years away. Hold on to me and the time we have been together, this is our life, our love. Just hold me one more time and don't ever let go of "we". Keep me in your heart. I have to do, what I am doing as this is how I am. Please keep the door open so that I can come back and be safe by your side, just one more time.
I love you, but I can't say it. Trust me, keep the door open and me in your heart.