The fellow I alluded to above is on his third marriage. I’ve been married but once, to the person I expect to remain married to for however much longer I’ll be drawing breath. But I had many a more-or-less “serious” relationship prior to my marriage. Those arrangements fell apart for various reasons, but in a few of them the cause was, at base, my own selfishness. I’d suggest to anyone trying to save a failing relationship to ask himself if the other party’s life is, on balance, improved by his presence in it.