I don't understand why the past tense is being introduced suddenly here.
Same. I have yet to learn anything regarding past tense. The hint said "I ran" but I went with present tense because I didn't think they were introducing past tense yet.
Could this also mean, I run towards you?
A Flock Of Seagulls - I Ran: http://youtu.be/iIpfWORQWhU