Hi:
I'm unclear as to what, exactly, you are asking, so I'll just throw some factoids out here and see if it answers your question(s). If not, please clarify.
You now have two Google Voice numbers (meaning, two inbound phone numbers, one on each of two separate Google/Gmail/GV accounts). It doesn't matter that you obtained one of them in the past by submitting a VoIP forwarding number; the two GV numbers are yours to keep, as long as you use them periodically (every few months) to receive a forwarded call, or make a call via your OBi or via a forwarding phone.
The current anti-abuse rules are intentionally vague, so as to not make life any easier for the sleazeballs who are grabbing up thousands of numbers for robocalling and spam. However, it's now public knowledge that you can't submit a number from a pure-play VoIP carrier to claim a GV number. *pure-play, meaning a company whose only business is as an ITSP, and isn't also a regulated ILEC or CLEC. In other words, Comcast Digital Phone number: OK. "SuperDuperCheapo VoIP company", not OK. I can't get into any deeper details.
However: once you have obtained a GV phone number by submitting an acceptable forwarding phone number, then you can, if you wish, add whatever other forwarding numbers you wish -- POTS landline, VoIP landline, or mobile. The key point is that Google is using the "qualified forwarding number" as a gate -- if you can't offer up an acceptable number, then no GV number for you.
So, in your case, you can add or move around your forwarding numbers between GV accounts, within reason. Delete the number off of one account before adding it to the other account.
And yes, you can use the same forwarding number on a maximum of two existing GV accounts, with one caveat: a number with type = work or type = home can be a forwarding phone on two accounts, but a phone number with type = mobile can only be used on one account. This is because of the way GV handles text message forwarding.
Finally, the "recovery" number designation is independent of Google Voice...it's used to recover your password if you forget it.