W/O/W
A while back you wrote “it’s irrelevant why someone is religious”
But you see, if you would accept the simple idea that what you believe is not an unarguable proven fact (despite the fact that you believe it with all your heart)but rather that it is something that for whatever reason you simply CHOSE to believe on faith; it will make it easier for you to accept that someone you love may choose not to believe it.
If however you honestly think that the belief system you have chosen has been proven as a fact to be true and that anyone who believes anything else is either dishonest or simply ignorant it will make nearly impossible for you to make peace with the idea that someone you care about disagrees with you on this.
There is nothing wrong with believing something based on faith (as long as you aren’t harming anyone because of it) but admitting to yourself that this is the case would go a long way in helping you make peace with the fact that someone you love has chosen a different path then you.