Missing out on dating?

Suppose you're in a relationship, and you're pretty happy. Your boyfriend has a type of personality that you enjoy, and you work well together and all that. Then another fellow comes along, and he has a different personality. Everything about him is different. You wonder how you'd get along with that type of person. It seems kind of dumb, in the abstract, to arbitrarily limit yourself to one kind of experience, just because it is satisfying.

Suppose there is someone else out there, with whom it is a certainty that you would have a better relationship than your current one. Suppose also, for the sake of argument, that you know this to be true. The right and proper thing to do in that case would be to permanently end your current relationship, and go enjoy the new one. Nothing else makes sense.

Ok, so in reality you don't actually know that such a person exists, or if you find a likely candidate, that there is any certainty of a successful relationship. In that case, the appropriate thing to do, seems to me, would be to break up the current relationship, try the new guy out, and if that fails, you at least have a better appreciation of your first relationship. How is that so bad?

We're talking inexperienced people here. They don't know how well they'll work with a broad variety of personalities, and it seems kind of stupid to burn your bridges on the way to finding out, if you don't have to. The judgement that if you're going to break up, you should do it permanently seems like an arbitrary one.

Jam it back in, in the dark.