THE DAY LINDA EVANS WANTED TO DIE! WHEN HEARTLESS HUBBY DUMPED HER FOR 15 YEAR OLD HOTTIE — BO DEREK!

Linda Evans, John Derek

It’s the day that forever seared DYNASTY star LINDA EVANS  — when she  got the old heave-ho for future "10" babe BO DEREK who was then only 15 years old!

In a heartfelt interview, Linda, now 69, not only knew Bo before she was Bo but also his prior wife Bond Girl Supreme, URSULA ANDRESS as hubby JOHN DEREK was keen on look-a-like wives.

“When I realized that Ursula wasn’t coming back to try and get him, but she loved him and wanted to be friends with him, I opened the door and adored her the moment we met.

"And then I realized that of course she wanted to be in his life, as I wanted to be in his life when we weren’t together. He was a fascinating character, a beautiful man,” Linda told Fox411.

“I got to know Bo before she became Bo.

"I helped her learn to act, helped teach her about the business.

"The fact that John fell in love with her, it’s not as if she had a design for him. I thought for sure John would realize that she was so much younger (Derek was 15) and it wouldn’t work and come back again.”

BUT as Linda juggled her love life and career, she couldn’t help but feel betrayed and devastated, she said.

“I wanted to die.

"It was the worst thing that could happen to me in the world, to live without John.

"He was everything to me.

"I was mad, I was sad.

"It was a horrible mixture of things.

“But what’s really wonderful is when you take your mind off of all of the men and you put all your energy onto you, and you don’t get caught up in the past and than you can have a great life! I’ve learned that over and over.

“I’m so grateful that John did that because he wanted me to stop working, period.

"I never would have had ‘Dynasty’ AND the men that I loved after that.”