Exactly. To quote Heinlein:
Love is that condition in which the happiness of another person is essential to your own... Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy.
I prefer the short form "The more you love, the more you can love".
Lisa had more lovers than I did. A given, she was prettier than I am. I disapproved of exactly one of them, because he was a jerk who bragged of military experience he didn't really have. She dropped him fairly quickly and not because of my disapproval, she knew real veterans (her father was Navy CB all through WWII, OSS [yes, a "spy" in Europe arranging for some folk to make court appearances at Nuremberg] after he was invalided out from only getting halfway across the beach at Iwo, USAF during Korea and spent a year and a half as a guest of the PRC at a resort in Manchuria, then a few years at Thule cooling down -- then he finally settled down and married his high school sweetheart then Lisa happened unexpectedly to their and later my joy).
Honest, I'm not suicidal. That would piss her off. I have support of many friends, hers, my few and mutual. It's been two and a half weeks. I'm drinking, but it's at maintenance level, not getting shitfaced like I did the first weekend (she died May 25, my birthday was May 26, I'd been sober a year and a half).
Sorry to bum folks out. really sorry. But "the more you love, the more you can love". It's the way we lived.