My father told him it's never too late to leave whether we are married with kids or just engaged. Sure it's lonely and hard work being a "single parent". Your attempts at being funny or lightening the mood may backfire, and your date may be put off. Do what feels right. Ask him if he's not seeing you to not commit.
Mormon girls are the best, and you are pretty lucky. Just remember that you chose one another. To others making this consideration, I would certainly suggest that you converse with your Father in Heaven about this important choice.
Please start another thread and continue the conversation. I am realizing now, after leaving my job, selling my house, moving ect…. At 30, you just give up. A lot of shared hobbies, interests, life goals. Would you rather give up the prospect of being married in the temple, the assurance of children being raised in the church, and parts of Mormon culture for your boyfriend, or a great man for your beliefs.
I hated it so much, in fact, that I ran off to China. I hope he can do it. Until then I didn't have much of a problem with his lifestyle because I still had my freedom and could focus as much as I wanted on a career. Be a good influence. I believe when you die, you die, and you live on in memories and hearts.