Meaning of phrasal verb "run away"

[Truong]

English Language Tests, Intermediate level

ESL/EFL Test #150 "Idioms with the phrasal verb run", question 3

I decided to ......... my girlfriend and get married when I found out that her parents didn't like me because of my religion.

(a) run away with
(b) run for
(c) run against
(d) run through

English Language Tests, Intermediate level

ESL/EFL Test #150 "Idioms with the phrasal verb run", answer 3

I decided to run away with my girlfriend and get married when I found out that her parents didn't like me because of my religion.

Correct answer: (a) run away with

Your answer was: incorrect
I decided to run through my girlfriend and get married when I found out that her parents didn't like me because of my religion.
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Hi, Could you explain the meaning of the phrase "run away with" in this sentense? Thanks a lot

Truong

[Conchita]

The term 'run away' here is practically used in its literal sense and means 'leave home secretely'. Another verb used in this sense is 'elope': run away from home to get married.