Resistance shouldn't affect it. The bolt likely struck on the tile next to you. If it strikes you, a message will popup and a lot of damage will be dealt. It's somewhere around 1 in 4000 chance to get struck on larger maps so smaller maps like Garnet Weald and Emerald Road have a higher chance due to lower number of tiles.
The whole title was made to be a really minor thing for now as you can't improve it above the first Level once you get it. It's mostly a gimmick to keep track of the fact that you got struck by Lightning. Most people even found it kind of annoying when they got hit by it so I wasn't expecting anyone to actively grind for it.
I was considering having lightning strikes attracted to anyone wearing heavy plate armour in the future to greatly increase the probability.
I do plan to have some instances where the player can be more dominant and initiate sex scenes against some opponents he defeats.
Glad to hear you liked the game!