do you think this could work ?
What do you think happens to majority of married couples after they lived for awhile and got to know each other like themselves? They get often bored if there is not constantly something new. The longer the process of finding out each other's peculiarities, the more chances it has to survive for a longer time. So not knowing the language is sometimes a blessing. Love doesn't need an accelerator or electronic translator or even a tongue as Sausage put it ;) The rest of our brothers and sisters have no languages as such, but live, sing, procreate and enjoy each other nevertheless. At least try. Good luck!
Many thoughts will be lost in translation :/
It is often for the better.