When we have 'right' on our side it is sometimes difficult to be patient and respectful when someone has an opposing philosophy. I think it was your lack of compromise that caused the breakup

It's not because you would not, because how could you? While we can be persuaded with convincing evidence, we can't exactly control what our minds will or will not accept. I'm so sorry your relationship tanked and that you're hurting so much from it. Trust me when I say that you're young and there is still a a good probability that you will find someone compatible whom you can love.

It's hard to have a relationship with someone with whom you don't share those basic values. There will be another, more suitable, women, hopefully, someday.

I’m on your side. Losing religion gave me such a sense of wonder.

Most not all religious people, that I've met or conversed with are close minded. They get stuck in thier beliefs. I've had conversations with Hindus that are very open minded. I don't care what people believe, we can all coexist. Once your open your mind, no need for orginized religion. Find what you love, do that for the rest of your life.

I wouldn't even consider starting a relationship with a religious person. Eeew.

Yes,I've been there myself,with a rational understanding of science and how Planetary motions affect us in subtle ways.

I've been there, and it sucks, but it's far better to be true to yourself

I had the same experience almost 60 yrs ago. I still miss her. I am planning to call her on her birthdeay just tol let her know.

Often a loss turns out to be a net gain. Not making light of the loss, just being realistic about the possible outcome.

Better to know when someone would rather wallow in their delusions than
face life with someone who prefers to deal with the truth of things.

Doesn't make it any easier to deal with, but you're better off in the long run.

I hope your not classifying your 'skeptic approach' as a flaw. That would be sad
I'm sorry for your loss in love. I could throw out a bunch of cliches but I really don't think they will help. Pain tends to numb us to everything else.
Obviously your beliefs are very important to you and maybe you can find peace in knowing that you did not compromise on your belief system. I think that you may have averted a lot of pain further down the road.
Peace

I lost my wife and my children for the same reason. It's not their fault, they are in a high control cult, namely Jehovah's Witnesses. The carrot of a second unending life is very hard to shake off. Realistically it's a stick with no carrot. Brainwashed and desensitized to what is really important. My children have not spoken to me in five years. Not my choice and certainly not to my liking. Best of luck to you, it can be hard living in reality. I wouldn't have it any other way.

In a situation such as this, if the relationship is to continue, both parties need to be willing to tolerate the deeply held (and often indoctrinated) beliefs of the other party. Without such acceptance, both parties are better off abandoning the relationship.
The example set by living well is usually more effective than debate.