It's a very strong gut reaction, either to the mannerisms of the person or the way they behave. "It could be that you've picked something up in their value system that's completely different from yours, the way they laugh or tell a joke might completely irritate you, or it could even be just their look or smell.

How do I stop being ick?

You may not be able to switch this ick feeling off instantly, but just give yourself some space and time. Explain this to your date too – maybe leave our the repulsion! – just say that you need to just work through some things. If they're worth it, they'll understand and be willing to wait.

What is sudden repulsion syndrome?

Sudden Repulsion Syndrome is what happens when a small decision or behavior puts an abrupt end to a budding relationship.