You do not know what her reaction will be she might think it is no big deal or she could be uncomfortable and things get awkward.
There is nothing to be gained by letting her know so my advice is to be silent and keep it to yourself.

I would just let it go. It has been two years.

Keep it to yourself If a provider trusts you , I mean REALLY REALLY does trust you , as you do her of course, then the slip of a name, due to traveling, hotel reservations etc, isn't something she should have to worry about. Unlike the post below, real discretion isn't something he takes seriously . When people come to the public area and start to say " I know so and so's real identity" it scares me because the enforcement side of the world, who do read the boards, now have something to go by should they so desire. With the post below  him being new to boot I felt it a violation of his providers trust , and to him , it probably means nothing. I for one am very glad that I did not give him my information at least information that he would see as real true and legit , when I had to go pick up my key the night before, because if his train does wreck, he thinks he knows my name and I hope he can explain himself when a few readers see that he is not discreet.

I do feel for the person with the office with the name on the door, and I hope she reads here so ensure
her own safety and peace of mind. But then again with so many weekly interludes, I am sure that his
lack of discretion, violation of trust , will soon surface in the female community.

Angela

then take it to your grave. You know your intentions, but she will never be totally, 100% certain that you will. Give her the peace of mind of keeping it to yourself.

Nothing to gain by telling her. Plenty to lose if it makes her uncomfortable. A very close lady friend once told me, if a women asks does this make me look fat? Lie, Lie, Lie, Don't know if that's the best way to go in that case but in a case like this/yours she said STFU.!! and I agree.

Forget you ever knew.  If she feels you violated her privacy, that's the end of your happy meetings.  Now you have given yourself the added burden of protecting her information.  
skb

Not a prob...This has happened to me on a few occasions.....

...doesnt bother me at all since the men I see are well established Hobbyist with great reputations and know how this works. Its an unspoken respect for the hobby.
What I have a grip about is when I have a morning visitor that's new to me and the dang hotel has placed my receipt outside my door for the entire public to see (not folded up or anything) and I haven't ventured out of my room yet so there it is right out there for the public!!...someone/hotels havent thought this through very well.
Hilton's are stopping this practice ...thank gawd.
I'd rather you clowns know who I really am than some stranger...seriously!
Overnighters...I could care less if a seasoned Hobbyist knows who I am as I have better experiences with Hobbyist than a civie date...by a long shot.!
Now, if I was adverting on Backpage and barely screening or something of that nature then I'd just about shit....!