First let me start by saying I've known this girl for several years. She was the best friend to one of my male best friends. One day she decides to tell me through text that she has had a crush on me for a while. Mind you, she's very attractive, and she's always getting hit on, but I've never hit on her myself. I thought it was strange that she would tell me this. She's seen me in relationships before and knows I'm a very loyal guy. So I take the bait and begin texting her. Here's the problem: She's married to a military guy who's stationed overseas while living with another guy she's dating, but ending things with, and now interested in messaging and getting with me. the guy she's with is kind of a loner type and very clingy, so being with me was quite different, seeing as how I'm not that kind of guy. I'm more or less the more mature type and she likes that I'm older than her.

So we date, and the guy she's living with goes nuts. He's been crowding her space so long, she feels like she finally can be free with me, and I move her in. My male friend decides to lay it all out there and let me know she's a huge flirt and falls easily. I still don't care. he and I have a falling out and he decides he's doesn't want to be a part of my life if I'm going to go against his advice. At this point, after she's lived there a while, we've had so much sex I'm exhausted. We've exchanged the "L" word on many occasions. I'm all in. But my redpill mentally never turns off. I go through her phone one day, seeing as how she's a frequent texter, and find out she's still messaging the stalker guy she lived with, as well as another guy I'm not even aware of. They both believe she's single and have no idea about me. Then stalker guy shows up at my house with some of her things, and throws them out into the front yard. he found out through a mutual friend she was living with me, and he apparently has had enough of her.

Fed up with her making so much drama, I finally tell her I'm done, and how I went through her phone and saw all the texts. By this time stalker guy is texting me with screenshots of messages from her, with very flirty conversations between the two of them. I show her this too, and she cries like a baby, begging me to take her back. She says that she has always been a flirt, but has never physically wanted to cheat on me with anyone, and to my knowledge she hasn't, since we're constantly in each other's presence (she even comes to work with me sometimes, though that doesn't stop her frequent texting issues). I didn't budge on taking her back right away. A week later, after she's been almost suicidal over it, we finally talk. She wants to come back in. No later than a week after this, I go to work and she's out with a new "friend" and his son. She texts me to let me know she went with him and his son to the store for groceries and back to his house to put them away and catch up. The new friend is going through a divorce and custody issues. He's vulnerable and she's feeding into it. Now they text on a daily basis. She's got a big heart and always wanting to help people through their problems, but I';m not sure how much of that is helping him or feeding into his vulnerable post-divorce state of mind.

She's changed her FB profile to "in a relationship" with me and made it very clear to everyone on her friend's list that we're together. She showing me that she's all in and taking all the necessary precautions to let me know what her new "friend" is texting her. She doesn't want any trust issues between us, yet she's aware of the new friend's intentions and still feeds into it. She knows now that I'm being extra cautious, and she trying to reassure me every day that there is nothing going on. She's filed the divorce paperwork, ended things with stalker guy, and made it clear with the new friend that she's with me now. Yet, I still can't shake this mistrust of her, and it's getting to me so much that my work is being affected. So what should I do? Give her the benefit of the doubt? Or let things go?

Edit: Many interesting responses here. I should have also mentioned that she's been nauseous and having late-night cravings lol. Fuck me right?

Edit 2: She's a recovering addict and hasn't been clean in a while. Since dating me she's been changing her habits and lifestyle and honestly, seems to be improving. She even lets me read all her texts now. She's been extremely open and honest now, and because I constantly question everything she does, she seems to feel like since no one ever called her out on her shit before, I must be the guy for her. Honestly, every girl I've dated has been a whore in some capacity or another. I'm truly just ready to settle and I'm not looking for a virgin princess. So being single right now would be cool, but I'm plating her for right now until she can make me a believer.

Edit 3: I've taken into account many of the comments on here and have decided to plate the woman in question. I eventually want to get rid of her altogether. I am still undecided on whether the sex is good enough to eradicate the plate completely. It is getting pretty old though, and her lies are becoming larger and more elaborate. I appreciate the help and blunt honesty.