This girl I’ve known for awhile is super flirty with me and all my friends (she was my RA for awhile but now we moved out). She always showed special interest in me and I never even noticed, it was my friends telling me that made me realize. She’s bi and open relation meaning she sees this one guy mainly and is open about it but still will he with other guys. I would’ve classified her as close to a nymphomaniac she talks about sex so much till about a week ago when I finally grew a pair and made a move on her at my new house I moved into in my college town. Things get hot and I start to make my way down and she stops me and says not to disappoint but I’m not putting out it’s just not a first hookup thing for me. I was completely fine with this because it’s a respectable thing. Fast forward to last night she and her friend come over to drink with me and my roommates and one thing leads to another and we’re making out on my bed, again I make my way down but she stops me yet again and says she’s on her period which normally wouldn’t be that odd, however she’s a very open person and has told me and all my friends before that she has the birth control that goes in your arm and that she hasn’t had her period in over a year because of it. Is this just a crazy terrible coincidence or is there something deeper here? This is twice we’ve hooked up and the most she’s done is give me a half assed handjob with making out and grind on me a bunch. She’s way into me, I can tell while we’re hooking up but she seems to stop short of going further every time. Any ideas?