Hey guys so I really need advice on this situation. There is a VERY cute girl that I work with. It started with her staring at me, me glancing back and catching her quite often while we worked. I added her on FB and nothing happened so one day after work I simply said “hey, whats your name?” she told me and I told her I had seen her working a lot, she replied kind of teasing, “you saw me working and didnt say hi?” kind of thing. Well a day or two later I like a status on her FB, she IM's me and we talk a little, gives me her number(without asking). So I text her and we start talking immediately a lot. I had known she had a boyfriend but he's kind of a scrub to be honest, she's 15 and he got a tatoo of her, he's also one of those heavy drinkers/smokers that will **** whatever moves when he's with his “boys”. We both converse well together. She would fall asleep(still does) before replying to my text, but I always get a “im soooo sorry” text or just a simple “Good morning!
” the next day. This went on for a couple weeks until things sort of escalated, we started flirting a lot more and it was obvious she was interested. As she would even joke around about how she “wants me” , I gave her my bracelet which she wears EVERY day all day. After I gave her that we stood outside while she waited for her ride home from work, we hugged a lot, I kissed her forehead, etc. We then began skyping a lot, and even talking on the phone for an hour or more usually. The next time we worked together I offered to give her a ride home, she accepted after we both did the “do you want to give me a ride? ...do you want a ride?” game. We held hands, had great conversation a LOT of flirting and I hugged her goodnight and a kiss on the forehead again. There have been two times where we were supposed to hang out, the first time I kind of caught we weren't going to hang out so I canceled before she could, saying I had other plans, she said she had to go to a funeral/viewing for a friends uncle. So I said but I am also off tommorow if you want to hang out? She seemed game to hang out but kept it at “probably” not a definate. Next day comes around I find out her bf was supposed to hang out with her so she went with him, however she later would say she wished she had of hung out with me. She does get jealous, for instance we were skyping and she had work, I told her I had to go see this REALLY cute girl and got off, she was ticked, especially when I texted her saying I was nervous, etc. I had work(she didn't know) and was all shocked/superexcited/horny(?) to see me. We did our usual flirting thing etc. I have only “ignored” her on two occasions and that wasn't complete ignoring, once was after she didn't hang out with me the second time and she sent me two duplicates that were like “i wanted to talk on the phone but if you don't want to talk its fine” but I later said I fell asleep and it was squashed. Last night we flirted more, when she started to act a little sour I just looked at the floor when she would look at me, she was leaving and I did it again and she was like “oh wow okay then..” so I responded and gave her a big hug. We walked to my car(she was getting picked up by her bf, dad couldn't get her) I had my arm around her, at one point I also grabbed her butt, she didn't mind at all, kinda kept my hand there. And we hugged/forehead kiss again. I asked her to SPAM she said “if your lucky” teasingly, and I didnt message her back on SPAM or answer her texts but texted her back a couple hours later “u awake” and got a text this morning that said you didnt text me last night 
. She says I give her butterflies, and shes not sure at all why she likes me but she does. She also “claims” she wouldn't kiss me because she doesn't “cheat” but she also said she couldn't hold hands and then liked to talk about how great it was after. She says one of the things that makes it interesting is that I am “hard to get” because sometimes I act non-interested, tell her idk if I like her, and that she has to step her game up if she wants to get in my pants(jokingly obviously). I am very nice, flirty, and cute to the girl. And when we SPAM/are in person she is ALWAYS smiling or laughing or both. I gave you all this background because I do really like this girl a lot, we have a great connection but I need some advice on increasing her interest level and decreasing her interest level in her bf, thus making her send him packing for me instead. The only time I mentioned them breaking up the conversation was like this, Me: why are you still dating him? Her; awh thats mean! Its not that easy, he has a tatoo of me” etc. She also hasn't really come to me with her problems, but I have been there for some of her problems, she has a mom with a lot of troubles. I wouldn't say I'm a nice guy tampon or whatever but I do let her know I am there for her if she needs me. Any questions thatd help I will answer.