I've been red pill a couple years I'm 42, and had a girlfriend for 8 months. She's 33, a good one, and a hot 9. (It's my personality, guys.) She's clear she wants marriage, and I've seriously considered it. She is head over heels for me.

We just did a weekend trip, and on the way back one of her male friends called her and said he saw me at a restaurant with another woman 6 weeks ago, and saw us making out. My girlfriend sent her a picture of my ex, and the guy said "yep that's her."

That was a fabricated story. I was sabotaged. The guy couldn't name the restaurant or the date it happened. I did not cheat. I denied it. But she believes him. I did get angry, not raging angry, but that pissed me off. We fought some, but I kept shutting up when it started to get out of control. But I think it's the first time I raised my voice at her. (It's pointless to argue.) We were at her place, and I fairly quickly got my things and left. I was mostly silent, but I did offer her to look at my phone messages, and denied it several times.

I think the thing for me to do now is move on, don't try to get her back, don't contact her, don't worry about it. Shit happens. She may or may not contact me.

I'm at a point in my life where a ltr would be great. I know there's other good ones; I don't have oneitis.

Questions: How do you handle cheating accusations? How should I play this to increase my chances of getting her back?

UPDATE 1(morning 1 day after the breakup): I will see her to pick up some things tonight My plan is to be calm and composed. I will tell her to name the restaurant and date. I will give her my phone to look at my google timeline any date she wants. Google timeline is a Google Maps app that tracks your location 24/7. I will calmly walk away as she will need time to think it over. I'm giving her solid reason to believe I'm telling the truth, and being a strong man at the same time.

Thank you all for the guidance. I will provide an update.

UPDATE 2 (evening 1 day after the breakup): Thank you all for the great advice. She called and I was prepared. I won't see her today. I did not respond to her text to pick up my stuff from her place all day. She called at 5:00pm HER: are you going to come get your stuff? ME: yea HER: when? are you getting it today? ME: nah HER: i went you to get it ME: you can bring it by HER: i don't have room in my car ME: bring what you can HER: can you get it before this weekend? ME: ok HER: you'll text me and tell me? ME: yea [silence] ME: is that why you called? HER: yes ME: i'll text you and say 'can i get my stuff now?' then you text me yes or no, ok? HER: ok ME: simple. huh bye HER: bye

UPDATE 3 (late evening 1 day after the breakup): I texted the hot blonde I was falsely accused of cheating with what happened. She immediately replied "Which of the 3 restaurants did he and his buddies see us?" She is a vegan, and won't eat where meat is served. I totally forgot. We impromptu went out for drinks with her, her boyfriend, and 3 random friends. This is one of my social groups so not unusual. She posted a public Facebook pic with her boyfriend holding her and reaching around patting my back. That's hamster fodder.
NEW QUESTION: My girlfriend knows the hot blonde's restaurant's pickiness because vegetarianism is something we talk about, and that's come up in the past. (I'm vegetarian too but will eat anywhere) Her male cousin and his buddies obviously did not see us at a vegan restaurant and not remember. I want to spell this out to her the next time I see my girlfriend. Something like, "She only eats at vegan restaurants. Which of the 3 vegan restaurants in this city is not memorable to him? Also, we are done." (Yes, I've taken the advice here to NEXT her)

UPDATE4 THE SOLUTION (3 days after break up): I told my girlfriend "Fuck this I'll just take a polygraph test." She went for it 100%, and I made an online request right there on the spot. I said I'll put 20k in escrow and tell everyone to be me. I'm being cocky as fuck, dominating all her friends and family, exposing they're only loyal unless it costs them money. I could tell she wouldn't me to take her right then, and I rejected her. "I'm not staying tonight. You're not sure, and I don't do that unless the girl is sure." I'm going to take the polygraph, pass it, fuck her, dominate her whole family, and what happens next is up to me. Done deal problem solved. LMFAO