My husband and partner has been unfaithful for a long time and it’s horrific.

Hi Rosie,
I just wanted to say thank you for writing your wonderful book and for being so honest about your experience, it has really helped me. I found out a few months ago that my husband and partner of 15 years has been unfaithful for a very long time and it’s been absolutely horrific. He now wants to be given a second chance, but I don’t think I can trust him again, so am considering divorce. This is so hard because it now, unfairly, feels like my decision, when really it’s no decision at all. What I’m grappling with though is all the fear involved in this different version of life I’m now faced with, one I never imagined or wanted. And I’m particularly scared that I’ll never feel peace, security and happiness in the same way I did and I always imagined in the family unit. And that any new version of happiness will be slightly lesser than the one I imagined. Having gone through this and being where you are now, do you think it’s possible to feel totally happy again?
I want to believe I will be happy again, and ordinarily am such an optimistic person, but this has hit me like a tornado and it’s definitely tested my positivity.
Any advice is gratefully received, thank you ❤️
Jilly x