Mistaken identity - part three

[Kirstini]

No: HPFGUIDX 80540

God, Lilian, I'm really, really sorry to do this to you when you've 
put in so much work, but I'm afraid I have to yellow flag you:
The only reason we know that Florence exists at all is because Bertha 
Jorkins names her to Dumbledore. "I saw him kissing Florence", she 
says. This presumes that she knows who Florence is. If she has seen 
and identified Florence, she's not going to tell Sirius "I saw him 
kissing a girl with red hair" if she knows the name of this girl. 
Therefore we can't deduce at all what Florence looks like from this 
tiny bit of information.
Also, I don't really think that Sirius would be *that* bothered, 
Prank-causing-bothered, by Snape/Lily, even if he was sexist enough 
to view Snape as "moving in on James' patch" - "I think it means she 
thinks you're a bit conceited, mate." He's *amused* by Lily's 
rejection of James, as teenage boys always are when this sort of 
thing happens to their friends, really.
Finally - if he's going out with a Weasley the entire time, 
particularly such a sympathetic one, I don't quite understand where 
Snape gets the motivation to join and remain in the DEs for this sort 
of time period.

I like the idea of a secret love cild lurking somewhere (I tried to 
start a theory that it was actually Tonks a while back, but was 
defeated on age grounds), and if you can make it work around all 
these obstacles, I'll probably go a bit worshipful.
There you go. My objections. Impress me with your manoeuvres, then!
Kirstini