It's not, but it is. Just with every relationship, there are tricky bits. Let's face it, getting properly together with a teacher at the end of term just as the year anniversary of the death of the man of her dreams occurs has got to be tricky. Realising that she isn't the same person as the woman you've been living with for the last 13 years, has again, got to be tricky.
But life is tricky, and if the world is going to keep turning then the world will stay tricky. There is nothing insurmountable.
I can do all things through He who strengthens me.