Morgan wanted to break Lancelot and Guinevere up bc she’s in love with Guinevere. how could any of you be so blind
the best headcanon.
I remember reading a summary/retelling of the Lancelot Grail (ages ago, so I might be wrong) where Guinevere gave Morgana a ring, and then she gave Lancelot a ring as well, and that was why I decided to believe Morgana would be very jealous and very in love with Guinevere
Arthurian Legends 