Hi Seddit. I need some good, solid advice. So here's the story:

Me and my brother live in the same apartment complex, but not the same apartment. The other day I went over to my brother's place to hang out with him, and my brother's roommate had a bunch of people over. Among those people was this really cute girl who I started talking to. She asked me if I wanted to go night swimming with her, and I said sure. There was a basketball hoop by the poolside, and we started shooting hoops. She suggested that we play "Strip H-O-R-S-E" which is basically like regular horse, but you take off one article of clothing every time you get a letter. She was only wearing a bikini top and bikini bottom to begin with, and she was naked before I had even missed a shot. We started making out, and I felt her up and fingered her. We went to the hot tub and did more of the same, and drank some vodka. She made it clear that she didn't want anything serious, she just wanted an fwb type of thing. I was actually thinking the same thing, so it worked perfectly. She offered to give me her number, problem was I didn't have my phone with me because we were swimming. My roommate walked by the pool area, and he said hi to her, because unbeknownst to me, the two of them are friends. She gave him her number so that they could hang out, and so he put it in his phone and left. We started to talking more, and she told me some really personal and depressing family stuff that she said she hadn't even told to her best friend. She started crying, and I tried to make her feel better even though we were both pretty drunk at that point. She wrapped her arms around me and said I was a sweet guy. She grabbed my hand and intertwined her fingers with mine and started singing "I Want to Hold Your Hand" by the Beatles. We were having a good time and it was pretty fun. Then more making out, and it wasn't too long after that we left to go get changed out of our swim suits. After I got dressed, I suggested that the two of us go to my place. She was reluctant, because my brother's roommate is the one who gave her the ride over to the apartment complex. I was kind of pushy about it, because I knew that if I could get her to my place, I could seal the deal. She eventually said yes, but she needed to to talk to my brother's roommate. She told me to come back 30 min later and she would be ready to go. Anyway, I came back 30 min later, but she was sitting on another guy's lap and I heard her admit that she made out with a third guy, which is okay, because this whole thing was only designed to be FWB, and honestly if another hot girl came along I probably wouldn't turn it down, so I don't blame her. Anyhow, I'm pretty sure she just made up the excuse of wanting to talk to my brother's roommate because she needed to stick around so that she could get a ride home from him. Well, okay, can't blame her there, I suppose. I can only imagine what it would be like to walk home as a drunk and defenseless woman at 3 a.m. in a town that reported 36 rapes within a two mile radius of where we live in only 2 months. So as much as I want to be pissed at her, I can see her side of things. Sure, I wished she would have been honest and communicated that to me, but she was drunk so her brain probably wasn't thinking clearly.

So today my roommate told me he wasn't going to get in my way and steal away my fwb, and he just gave me her number. Cool move on his part. He's a solid guy.

So Seddit, my question is, what do I do with this number? I feel like if I text her, she will think I'm clingy, and not want the whole FWB thing anymore because it will not only come off as clinginess but also it will communicate that I have no other options (which I don't but I read this subreddit a lot and I try to improve my game. I'm a beginner at this.) But on the other hand, if I don't text her, I'm worried I might never see her again and blow my chance at FWB with her. I'd love to hear opinions. I know a lot of you might give me a spill about Abundance Theory, and let me be the first to agree with you there. I am in fact trying to improve my game and hopefully develop a few different FWB relationships. But I can't do that if I lose the ones I've already got, which I'm worried is going to happen with this girl. So how do I keep her around without seeming needy? She's clearly sleeps around, so she has options, whereas I have none. How do I keep her hooked on me and wanting me? I really don't want to just "forget" her and move on to a different girl, because that sort of defeats the purpose of having an abundance of girls, which is what I'm trying to do. But by the same token, I don't want to pour too much effort into this girl and communicate clinginess and lack of options. Ugh, so conflicted.