My wife of 38 years says much the same thing -- but I take it it as reassurance. Although if she never felt erections of any sort again, apart from a few regrets, I don't think she would be too bothered. "Now I can have some peace!" She, like most other wives wants first and foremost for hubby to be alive.
She enjoys IC, and regularly orgasms, but her natural frequency is once per week or less, while mine is more like two or three times per week. Fortunately for me she is easily persuaded that a higher frequency is better -- for therapeutic reasons of course. 
And lets face it, IC is much more important to men than women. I know there are exceptions, but I've never met one 
So Geon, I suggest don't read too much into your wife's comments -- but if you are not attending to her wants, take it as a wake-up call.
How are your trimix injections going? I'm on bimix, and after an initial learning curve, they are working well. With ED, we find there is no spontaneity, so our hot dates have to be planned. Things are different to what they were, but still good.