Have you ever met someone who for no reason just didn’t like you?

Yes. And I have met people that I, for no reason, didn't like.
Sometimes people rub each other the wrong way.

This has been well expressed in Latin by Martial and in English by Thomas Brown, and there is a whole story to this that I didn't know till just now from Wikipedia:

[quote]When Brown was a student at Christ Church, Oxford, he was caught doing mischief. The college dean, John Fell (1625–1686) had expelled Brown but offered to take him back if he passed a test. If Brown could make an extempore translation of the thirty-second epigram of Martial, his expulsion would be cancelled. The epigram in Latin is as follows:

Non amo te, Sabidi, nec possum dicere quare.
Hoc tantum possum dicere: non amo te,

a literal translation of which is "I do not like you, Sabidius, nor can I say why. This much I can say: I do not like you." Brown successfully met the challenge with his impromptu version, which soon became well known:

I do not like thee, Doctor Fell,
The reason why – I cannot tell;
But this I know, and know full well,
I do not like thee, Doctor Fell.

The story is that Dr. Fell stayed Brown's dismissal.[/quote]