Maybe try to find the Glowshrooms at the cave, which you can randomly find each time you go there, or keep exploring the forgotten temple until you find her husband and talk to her about it in the ruins, if none of these is working for you, then you can ask Hayo for help with this in case something happens to it like a bug or something.
The cave you are looking for is the one just past the Troll's Bridge, the top right-most icon if you are looking at the world map, and for the husband for that lizardess, he can be found by exploring the Forgotten Temple until you trigger a scene about him with the female lizardess and the warriors on the stage.