Haha I loved that four page monologue. Really sealed Echidna's status as my favorite character to come out of this arc. I guess the point we can split hairs on is whether Echidna's idea of love matches our generally held definition of love, but then we just get lost in semantics. So, I'd agree that Echidna, and all of the witches by extension, have emotions beyond their deadly sin, with the caveat that their deadly sin influences all of their other emotions.