A new cat has moved into our area and is always on our balcony where my cat is and they fight as my cat doesn't like him there. We have noticed a urine smell so one of the cats are spraying to mark their territory. My cat doesn't want to go out anymore and is depressed and won't eat. He is not as affectionate and were worried about him. We squirt the other cat with water but he always comes back. Is there anything we can do to cheer our cat up. It's awful seeing him so sad
Thankyou x

Could you net in the balcony to keep the intruder off?
It does seem your cat is upset by this, though I'd hope things will settle down eventually with new territorial bounderies settled.