If I may also give a brief suggestion, coming from a place of a lot of love for bootstrappers and sympathy for your situation, there is a line in your post which suggests that people compensate you for the 2.5 years you put into this when making an offer. I am afraid that this is at variance to how the world works generally and how acquisitions of small websites work specifically.
People pay for their future revenues, not your sunk costs. In the world of small website acquisitions, you'll be valued at something like 1X your previously proven annual revenue, not at a linear projection from what spike day looked like. If that number is -- let me pick a representative example -- $100, then you have a $100 site, not a $60,000 site, even if $60k is a reasonable approximation of the cost of duplicating it using market labor.
Also, as someone who also has struggled / struggles with depression: it is much much better for yourself and the world on net for you to just say "I am under stress and cannot email today, therefore, I will not email today." than for you to be adversely affected trying to get people replies to their questions about a browser game. Some people may be discomfit by this. That's fine. There is an entire Internet full of browser games. There is only one you. Do whatever you need to to not have this adversely effect you and your loved ones.
Congratulations on shipping, by the way. Very few people can do it. You demonstrably can. That's awesome. You've got a lifetime of shipping successful software businesses ahead of you, regardless of what happens in the next short while.