Have you ever actually counted how many times you waited for a call that never came? Not just remembered it later, but actually kept track?
Because your friend is right, but not entirely. Yeah, your brain works selectively and remembers the hits while forgetting the misses. But there's another thing: intuition isn't magic, it's your subconscious at work. It processes tons of signals that you don't consciously notice. For example, you saw that this person always calls you on Tuesdays at 19:00, and your brain registered that, even though you're not thinking about it. When Tuesday comes around and it's getting close to 19:00, you feel anxious - and it seems like a premonition, but really it's just your memory of the pattern.
You can trust your intuition, but with a caveat: it works not like magic, but like very fast information processing. When you get the feeling that something's off with a person, it often means your brain picked up on a microexpression, a tone of voice, something in their behavior that signals danger or deception. That's useful. But when it comes to random events - calls, coincidences - you shouldn't trust it completely. Test yourself: keep a diary of your hunches for at least a week and see what percentage of them actually pan out. That'll give you an honest answer.