IMO, i would just stay friends and keep it online.I think you have got yourself caught up in a fantasy of "what if" because you met this lady in circumstances you are not used to and it has excited your brain because it was "different".
You say you are a well off guy and have no problems dating IRL, i would continue doing that.It's the much easier option.
If the online friendshop fizzles out, don't stress it and put it down to experience.
Anyway, i'm off to the winchester pub for a nice, cold pint.....
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