Is EVERYBODY wrong in the post ? POST :  

About a year ago I broke up with my ex (ltr) and moved to the city, around this time I also started a new job. The first few months I was trying to get my life together when I made a new friend at work, let's call him Bill. Bill is an interesting guy to say the least, I'll leave some details out, but I will say that his teenage years were rough and he struggled with substance abuse. He's been clean for 2-3 years now, but drinks and smokes pot daily. I thought this was fairly normal for guys our age (20's) and started hanging out with Bill 3-4 days a week after work &amp; on weekends.

Bill lives with his girlfriend, Sally, and early on I could tell they didn't have a healthy relationship. Bill was verbally abusive to Sally, and it doesn't really matter who else is around. Most of the time when I'm with the both of them it doesn't get too bad, but sometimes it does and I've had to step in and tell him to shut up. Turns out, he treats a lot of people this way, such as other friends and even his mother. I happen to be one of the only people he treats with respect 24/7 (the only other one I can think of is his dad, who by the way, happens to be one of my bosses at work). He's actually been a great friend to me, helping me and being there for a major life event.

Whenever we hangout, usually at his place, Sally is often home. Apparently, I'm one of Bill's only friends that talks to her and tries to be her friend too. Sally is gorgeous, and is the sweetest and most interesting woman I've met since my breakup. Turns out me and Sally have super similar interests and we're both very chill, down-to-earth people. Bill, is hot-headed, judgmental, and argumentative. I couldn't help but fantasize about being with Sally, but I didn't think too much of it because obviously I would never do that to my friend, Bill. At least I thought that until recently...

A couple weeks ago Sally texts me, and asks to borrow my truck, and hints that she's using it move out of Bill's house. I explain that I don't think that's a good idea, that I don't blame her one bit for wanting to leave Bill but I can't get involved for fear of causing drama at work (I should mention while all of this is going on, we're in the process of Bill being transferred to my department at work that I supervise, he's already working under me at this point). She understands and let's it go for awhile.

That is until over the course of the last week we've slowly been starting to text more and more. It started with her just venting, and this is when I found out the situation was worse than I thought (there has been domestic events, the last one the police were involved). It then progressed to just chatting, with her occasionally flirting while I tried to be neutral. Eventually, I couldn't help myself and starting flirting back. Feelings came out from both sides, apparently this has been mutual for quite awhile now and we've both just been fighting it.

AITA?