Breakdown of Ayer nos amargó la fiesta y encima fue grosera, y eso que es mi amiga.
ser
to be
y
and
el amigo
the friend
mi
my
Questions & Answers about Ayer nos amargó la fiesta y encima fue grosera, y eso que es mi amiga.
How does encima work here, and could I use además instead?
Why use the preterite fue instead of the imperfect era for being rude?
We use fue because her rudeness is being viewed as a completed event that happened during a specific timeframe (the party yesterday). If we used era, it would describe her general personality (she was a rude person in general).
Does grosera mean she was being 'gross'?
No, this is a classic false friend. grosera means 'rude' or 'ill-mannered'. If you wanted to say she was being 'gross' or 'disgusting', you would use a word like asquerosa.
The phrase y eso que translates to 'even though'. Why doesn't it trigger the subjunctive like aunque sometimes does?
The connector y eso que always takes the indicative. It is used to introduce an established, undeniable fact (she is my friend) to highlight a strong contrast or the speaker's surprise. Because it deals with absolute facts rather than doubts or hypotheticals, the subjunctive is never used with this phrase.