@Sothisiit so so sorry you’re in the same situation, I hope you have found some help in these posts. I know it helped me hugely just knowing it wasn’t only me going through it, because it’s very easy in these situations to believe that you’re a terrible, unlovable, unwanted human being who will never be happy again. Infidelity is a depressingly common occurrence, and it completely shatters the other person.
My ‘numbers’ are very similar to yours - together 18 years, married 12, and a husband who didn’t feel what he should have for 7 / 8. No children for us thankfully so we haven’t had that stressful extra complication.
Dealing with and trying to process the fact that ‘your’ person no longer has feelings for you and on top of that has feelings for someone else, is an incredibly brutal thing to go through, so many on here will relate to it.
Please don’t feel like an imposter, I hope others come along soon and say the same - it’s a truly agonising and traumatic life event whether you’re male, female, white, black, or green! Emotions, heartache and pain are universal.
Hugs to you for the coming weeks.