I don't have a problem with eating it, no. It's erotic and part of the whole experience for us. Hubby will happily kiss me after I've had a mouthful too.
As far as your wife goes, I imagine if she's not into it, she may not be interested in you doing it. But...it really does feel amazing, what do you think she'd do if you went down on her after cumming? What if you did and it turned you on enough to go for round two with her, maybe it'll change her mind...
I think she will be apprehensive at first but I think she would just go with it. So she might just relax and enjoy, especially if she has not climaxed yet. Then if I get hard again, yea...she would LOVE IT!!!!