Before the first revelation, Prophet Muhammad ﷺ would spend time in worship in the cave of Hira. The angel came to him there. The account of this meeting is recorded in Sahih al-Bukhari.
After this overwhelming experience, he returned to Khadijah. She comforted him. She remembered how he cared for family, helped people in need and welcomed guests.
Something to think about
Khadijah responded with reassurance and care. When someone feels worried, how can you listen kindly and help them feel supported?
This is a brief paraphrase of part of the account, without invented conversations or extra story details.