First off - probably a good thing to give it 48 hours to think about.
Second - my DB coach has specifically said to not feel bad about, ahem, using H for my own pleasure (and to frame it as, well, you're still my H, I have needs, it's no big deal, etc.). I'm not mentally capable of doing that right now, so I understand your resistance. My concern for you is that if your H is having, ahem, relations with OW, would you want to put yourself in the position of exposing yourself to something that could affect your health, ahem if you get my drift. That [censored] to think about but if it's a possibility then you want to make sure YOU are protected in this situation.
So... no helpful direction here, really, just something to think about and letting you know that the idea maybe isn't as crazy as it sounds.