Tu stands for "Your" while Tú stands for "Yiu". El stands for "The" while Él stands for "He". The accents change the meaning of the words.
Pareja which is the answer given by Duolingo does not mean wife. Wife is Esposa. Anyone know any different.
I got it totally wrong anyway.
Not in my dictionary. Do you mean marido? That just means a married woman. It's quite common to refer to someones wife as "mujer" or woman. Wife is esposa. Duolingo is wrong with this one.
Why wouldn't it be marida for a woman? I believe they say it this way in South America.