You can see who gave you ‘Ride Ons’ by logging into this Zwift website and looking at your activities: https://my.zwift.com/index.jsp.
As far as looking at the stats from your ride, you could link your Zwift account to the likes of Training Peaks and/or Garmin Connect (among others). They’ll show you data relating to your maps, power output, heart rate, cadence, speed etc. (obviously depending on what sensors/devices you have connected).
I seem to recall hearing/reading that some of the Zwift KOMs and sprints are also Strava segments and can be checked out there. I really have no idea of the veracity of this as I don’t use Strava - sorry. If it is true, presumably you can link a Strava account and see how you did in the various virtual segments via it. I imagine it’ll also give you quite a few details about your data from the ride. As I say, I don’t use Strava and am far from au fait with what it offers.
I’m not sure I can help much with most of the other stuff.
Obviously you can see which people you follow and gave ‘Ride Ons’ to through the Zwift Mobile Link app. I don’t believe there’s any way to see who you gave a ‘Ride On’ to but don’t follow. I may be wrong. If I am, I hope someone else clarifies that.
I hope that’s some small help Doug. Sorry I can’t be more useful.