Yeah, Lanfear would have "Kadere'ed" any woman she suspected of having Rand's affections; where that be Egwene, Aviendha, Min, Elayne, Isendra, Siuan, Sorilea, ....
My take on the the dock incident is that it should have been the end of Aviendha's arch. I'd have expected Lanfear to extract an...
Oh, my understanding is that he was worried in general about Lanfear's fearsome jealousy. He knew that if she got a hint of him caring for another woman, said woman would be dead or worse (e.g. Isendre). And she did give him a mark on his chest when she entered his dream of swimming with Min...
The Cairhien docks incident targeted Aviendha. Almira's remark had me thinking that Lanfear targeted Egwene for assassination outside the docks incident.