Lowkey under the radar cheaters? [spoilers main]

I feel like I always forget that Davos cheats on his wife cause he's otherwise an upstanding character and in his POV, he seems like such a wife guy that the offhand thoughts about cheating always takes me back. But it shouldn't be that surprising that a guy who spends a lot of time out at sea and not home with his wife would be with other women from time to time. Similar to Corlys and Rhaenys who defintiely loved each other but like seafaring... I gues it gets lonely out there.

So who are other characters you think could be lowkey cheaters that you might not expect given their personality and we just don't know about it cause they have no POVs or are just historical characters?