Welcome to Cum4K - Nothing beats the level of intimacy and joy you feel while dumping your load deep inside girl you are having sex with.
Here are a few questions you could ask her. Do you want to be married in the temple.
We started dating 16 years ago, and both resigned from the church earlier this year. My wife is living proof that they CAN be worth it.
She is considered "an old maid" by Mormon standards, so she may be willing to marry you--hoping you will convert someday --but she will constantly be reminded that your marriage is inferior to the "Eternal Families" of sealed Mormons, and she will fear dying and never seeing her loved ones again.
Take the missionary lessons, read the Book of Mormon and the Bible.