I don't really see any reason for her to.
Well I would expect her to not like him, it's jut the viciousness of it that surpises me, especially from a normally frighteningly practical girl like Trixie.
On one level, she dislikes him because she holds him responsible for Sol's injuries. She's disgusted with how Sol always supports him, but because Sol is so nice to her, she puts the blame on Bullock.
On a deeper level, I think she distrusts him for the same reason she insists on pushing Sol away (ie, her storming out when Sol didn't like her offering to pay for his help by "taking it out in c***"): she's used to men being like Al. She can handle them. To her, Al is the norm, not Bullock, with his honor and his pride and his moral and aristocratic bearing, at least not in place like Deadwood.
Seriously! What the fuck crawled up her ass? Is it just because of Bullock?
I guess she's not used to the hardships of the frontier emotionally. She was thrust into a marriage with a man she did not love, using an opiate addiction to escape. Then even that was taken away from her. So she comes to lean heavily on Bullock, and then even that's ripped away from her. The frustrating thing is that it's not really anybody's fault. She loves Bullock because he's honorable, and he's doing the honorable thing by severing their relationship (she didn't even try to convince him not to). It's not his wife's fault either, she's only trying to keep her new family together.
So she takes it out on the man that, to her, symbolises everything dirty and slimy and disgusting about her situation: E.B. Farnum.
(I loved how he was spreading the rumor to the old guy. The whole scene was choreographed and directed so great. And nobody beats Deadwood's ability to come with with dialogue that is both profane and lyrical. Also dig Farnum's messages to Al when he was sick.
)
Yeah, she's a hottie. So's that new chick that was with Sy, Layla or something like that.
"Now roll over, stupid, and close your eyes."