page 206 of 960 of Sir Thomas Malory: Le Morte Darthur: The Definitive Original Text Edition

206:

The damesell says she knows Gwenyvere has enchanted Launcelot to be only hers. I forgot about this part, but it seems unlikely this is the truth since the story wouldn’t work if Launcelot had been tricked – this must just be the damesell’s jealousy because Launcelot will only love Gwenyvere – the 2 Elaynes will come later, however.

Launcelot kills a castle porter at the bridge.