Is OTHER wrong in the post ? POST : Using a throwaway for this because theres some things I wouldn't want to spill. 

So for context I was manager at this fast food restaurants and let's say my gm was a certified bitch no way around it she made my life hell and I was promoted through the efforts of everyone but her. Now comes about a year ago when this new girl starts. She's super nice super funny super motivated and into the same things I'm into. She calls me her first work friend and wants to hang out a lot. It's not till a week later one of my coworkers tells me how they're related and they (possibly) live together. Now seeing that my mind and heart told me I couldn't date her anymore. A year later and I quit and she hits me up to see how I'm doing (I quit because I had I falling out with her sister) and she asks if i would want to go out on a date and I tell her I just don't feel comfortable knowing you two are related. Later on I get a call from an ex coworker saying how I'm an asshole and I had a bullshit reason for not liking her. 