How can you end a relationship with a chronic liar?

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Prudie,
I've never written for a columnist's advice, but then, I've never agreed with one as much as I do with you. Here goes: Almost three years ago I met a man who swept me off my feet. Though it was a long-distance relationship, he wooed me stunningly for eight months. Then his wife called. He said they were mid-divorce, she claimed they weren't. It was a nightmare but I decided to try to make things work and get through it (and yes, they finally divorced). Since then, I've discovered he lies about all types of things, both big and small, and despite multiple promises to change and countless proclamations of love, it never seems to stop. Aside from this, he's amazing to me—kind, thoughtful, funny, considerate, and I know he truly loves me, all of which makes it very hard to leave, even though I think that's probably best. He's about to be relocated for his job and I don't think I want to move with him. I just don't trust him anymore. I've grown weary of always having my guard up. Without a catalyst, how do I end the relationship without guilt?

—Lying in Wait

Dear Ly,
For all this man's fine qualities, the guy's got a problem with the truth. Comfort in a relationship is key, and always waiting for the other shoe to drop is to be always looking over your shoulder. Without trust, the kind/thoughtful/funny traits will never feel like enough and you'll spend your life feeling jumpy. As for calling it a day, you have a perfect out because of his relocation. Tell him that after a great deal of thought you've decided it is better for your life to stay where you are. Over and out.

—Prudie, comfortably

Dear Prudence,
My husband has a 5-year-old son from a previous relationship. Things are working out well, but the only problem is that he calls me by my first name and it just doesn't sit right with me. I grew up having to put a handle or a title in front of any elder's name out of respect, but nowadays children don't. I require my 2-year-old son to do this as I want him to understand the distinction between his peers and mine as he matures. But as a new stepmom, I'm having a hard time even thinking of what he should call me, though I know it definitely should not be only my first name. He already has a mommy, so that would be inappropriate, and saying "Miss" before my name sounds too formal and cold. What would you suggest?

—Perplexed

Dear Perp,
Your thinking regarding youngsters knowing the difference between their peers and yours is admirable, as is your wish for teaching children the proper form of address. Your particular situation, however, is the exception. It has become standard practice for stepkids to call the new parent by his or her name. Unlike grandparents, the steps don't have the same latitude about what name to be called. Whereas "Grandma" often precedes a pet name, "Stepmom Lulu" doesn't cut it. Also, grandparents' names often come from a toddler's inability to pronounce a certain name; presumably the 5-year-old kid you are writing about is beyond baby talk. Given your preferences, the closest Prudie can come to a solution would be "Mama fill-in-your-name."

— Prudie, nominally

Dear Prudie,
I come from a large and prominent family in our community. I have never had a father, per se (long gone, and gratefully so), and in his place has been my grandfather, the head of our family. All my life I have admired and emulated this man. But now I am at a loss. Several weeks ago, my grandfather was in a severe accident. Thankfully, he recovered. However, he requires an escort for transportation, etc. Unfortunately, he does not trust strangers to look after him, so this task fell to me. At first, I was very excited to spend the extra time with him, but I suppose this has become a case of "be careful what you wish for." I do not like my grandfather. In the past several weeks, being with him, I have come to realize that he is quite possibly the most unpleasant person I have ever known. He is rude, mean, petty, angry, and negative ... things from racial and ethnic epithets to horrible treatment of wait-staff. Worst of all is his demeaning treatment of my grandmother. They have been married for over 60 years and he treats her as a nonentity. While one might be quick to blame these failings on the accident, after talking with my family I realize that is not the case. I guess the question is: What do you do when your heroes fall? I love my grandfather. I just do not want to become him.