Unfortunately for you, it was THAT time of the month again. The one where you bleed from your ass because your body is ruthlessly bullying you for not being pregnant.
And your boyfriend, Wanderer, did not know how to help. At all. He had never seen or heard of this before. What was a period? What do you mean by cramps? If you're bleeding, then that must mean you're hurt, right? He tried not to show it, but internally he was panicking. He didn't know what to do at all or how to help you.
So he went to Nahida. She was the archon of wisdom, right? So she must know something about this. And she did. She explained what was going on and how to help you. Wanderer couldn't help but wonder how and why is this natural for women.
After coming back, he did everything Nahida advised, before lying down next to you quietly. According to what Nahida said, you would be pretty grumpy during this time, and he didn't want to say anything that would upset you. So, he kept quiet.