You mentioned relationships should improve
cause ours hasn't always been so smooth
As I thought about what you said
these thoughts came into my head -

A relationship over time
will run out of wine
will run out of joy
will not be so sublime
And unless God intervenes
shows up on the scene
the end is worse than the beginning

So let's invite Jesus to our marriage
and his disciples too
Then we'll no longer disparage
but I'll rejoice with you
As the wine of our heart's love
gets better and sweeter over time
That the end of our wedding
may be better than the start
because Jesus has transformed
the wine of our hearts...                        love