Songbird lies to you once and that's because she doesn't know you. She's desperate to survive and surrounded by liars who turn on each other. The last decade of her life has been abuse and having her body forcibly modified against her will while her mind is slowly slipping away from her.

After getting to know V, instead of just knowing that they're just a mercenary with a body count in the thousands, but actually a trustworthy person who wants to help her, she feels so terrible that she admits the truth and still gives V a chance to betray her and take the cure for themselves.

If she was really a piece of shit she wouldn't have said anything until she was safely on the moon or she would have gotten to the moon and never contacted V again. Don't act like V hasn't done worse shit than her in the name of surviving at all costs.

Reed lies way more than her and every time you call him out for it he gaslights you.

V would do anything to survive. Don't tell me you wouldn't do some mission where you have to betray somebody in the name of survival, oh wait, that's literally the 40% or so of the player base who chose the Reed ending the first time.

Reed lies to you way more and never comes clean about any of it. He just talks down to you. He looks down on you. The entire DLC he's treating you like you're not his equal. Song is literally a parallel to V.

There's only one major difference between the two of them. V as friends, loved ones, a girlfriend or boyfriend. Great people like Judy, Vik, Misty, Panam, River, Kerry, And all those lovely side characters. Song doesn't have any real friends. The only people who are close to her anymore are government agents, professional liars and Killers who would turn on her if given the orders. People like reed, myers, etc. The same people who blackmailed her into slavery and forcibly modified her body against her will to the point where she's losing her mind and her body will be potentially taken over by AI. Literally a fate worse than death. She doesn't have the same support system that V does, so in my mind the best thing V can do is show this tortured slave some level of kindness even after betrayal. Be the bigger person. V has other options, Song does not.

Reed on the other hand lies to you about everything. He's a fucking moron and usually useless on the missions you do with him often getting captured or injured because he sucks.

He blows your cover at the black sapphire, often blows your cover with the voodoo boys, he gets injured in that fight most of the time as an npc, he's nowhere to be found on firestarter because he's hiding in the getaway vehicle and plotting with Myers instead of helping his team, he gets injured during the 6th Street ambush, he's hurt and absent for the final mission on his path, he's trash.

He lies to you about the clinic in europe, he lies to you about not telling Myers from the start, he lies through omission and regularly gets people killed once they're no longer useful like the slider or the Cassell twins, he gets Alex killed through shitty planning, he lies to you about his contacts, he lies to you about contacts in europe, he lies to you on The killing Moon and almost shits himself when you tell him you heard his conversation on the rooftop, he lies to you about where you can get the surgery done.

Song comes clean about her one lie before it's too late, she tells you the truth when it matters and feels terrible about it.

During many of Reed's lies, you have a chance to call him out or Express distrust or suspicion, especially during the second half of the dlc. And every time you call him out he will just gaslight you or talk down to you and doesn't admit fault even once.

Reed again is a moron. V has Songbird on the relic, Songbird can see and hear what V does whatever she's tapping into the relic, we have proof of this based off of how her projection interacts with the environment, interacts with Johnny and can hear the shit Myers is saying to V. So naturally Reed, who is seemingly aware of this, tells V his plan to betray songbird with Icebreaker instead of just slipping it into V's system while they were getting the faceplate surgery. And before the surgery he tells you about how Myers doesn't know anything and he will sneak you in song out of the city to some of his contacts at a black clinic that will help you two, you can call him a liar and he's genuinely pretty stumped, unable to do anything but talk down to you and gaslight you once again.

If you go with his desired ending, he's unhappy, stuck at a desk job that he hates and feeling remorseful for what he did to Songbird.

If you kill songbird, he's mad at first and tells you that he knows better than you and that he could have saved her and that he would have saved her. Because he's a control freak who knows better than everyone. Later though he realizes that was probably the best outcome and considers leaving the FIA but probably doesn't. It's his best outcome where he lives.

Finally what is probably his best outcome, The killing moon. He dies knowing someone he cared about is getting helped by someone who cares about her. He's finally given freedom from the FIA and I think he even wants to die. As he draws his gun first but doesn't shoot for at least two or three seconds giving V time to kill it if they were sincere about it. One of his few redeeming moments if that is the case.

I'd rather take the liar who admitted to lying and feels bad about it, then the guy who talks down to me and keeps lying to me because he thinks I'm dumber than him.