[rl3]

>...but the reality is that we have not had much confidence in the business for a while.

It's possible to be a true believer but still have doubts about logistical matters, such as ability to execute or the product's sales potential.

If you and your founder are completely demoralized on all fronts, have been for some time, and there's no way to rectify that (e.g. perhaps fixing your burnout), then by all means throw in the towel.

If there's still a spark somewhere, then do what you think is best.

>...and hundreds of thousands of dollars of opportunity cost income, I am tired.

I know the feeling, and it burns. Perhaps you can negotiate the acquisition offer to make up for that?