Different religious beliefs than SO?

Heaven • ♡ 24 | birth mother | cat lover | crocheter ♡
Do any of you have different beliefs than your SO? 
How do you handle it?
When raising kids, how do you decide how to raise them?
And, if you're like me and a Christian, how do you come to terms with the fact the person you love may go to hell?
Do you think you can stay in a lasting happy relationship with completely different beliefs?