I would say by your description, he had more E than you, so when you merged on the second loop, he was able to get on top of you. You were prbably more or less trying to hang on and get back on top b ut you stalled out and he rolled over and killed you.
What I like to do when I'm in an impromtu 1v1, I try, for at least the first two merges, match what their doing. By then, I have a clue as to how good they are, and what I am about to do, to get a shot nessesary to kill the other person.
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