If you are all sealed together, you will be together forever in the Celestial Kingdom. I wouldn't just start bringing up the ces letter and the problems in it. Things have been mostly good, but there are always challenges to deal with. I really don't know how will I cope up with every matter without him by my side in this new road ahead of me. By those standards, I was a failure, my husband wasn't "good enough" - and my daughter had ambitious real goals that required a lot of time and effort. Mormonism isn't a free ticket to heaven.
I know some people don't like the sound of "working for a relationship", but it can be so rewarding. The Church encourages you to use dating as an opportunity to show your respect not just for others, but for yourself. And for your husbands, you are that person. I'd like to reiterate, though, that sheer physical exhaustion isn't as much of a problem for me as it might be for a med student or a doctor, so he might be deserving of the benefit of doubt if he doesn't keep in touch regularly.
I have been married to a doctor for 29 years now and think I have felt or experienced many of the worries expressed. You cannot do his job. Men and women must be willing to accept what they know to be true. I've been the main parent for 30 years. The big one is that under Mormon theology both of you must be believing, fully active members to live together in the afterlife.
The first time that happened could have been viewed as a warning sticker, and been your cue to exit stage right. I really don't know how will I cope up with every matter without him by my side in this new road ahead of me. Eternity is a long time. We all wondered why should would go against such a blessing. Tell her that you want your relationship with her, and her relationship with your children together to be separate from her religion with her god. This came about after many hours and many days of prayer, scripture study, going to the temple, receiving a priesthood blessing, and speaking with people I greatly trust my mom, especially. You will have to make sacrifice your happiness a little. Sounds like classic "flirt to convert.