A friendship can weather most things and thrive in thin soil; but it needs a little mulch of letters and phone calls and small, silly presents every so often - just to save it from drying out completely.
The baby rises to its feet, takes a step, is overcome with triumph and joy - and falls flat on its face. It is a pattern for all that is to come! But learn from the bewildered baby. Lurch to your feet again. You'll make the sofa in the end.