She will stay with you as long as her interest level and attraction levels are high. You keep those interest levels high through great sex and maintaining the alpha qualities which attracted her to you in the first place.
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So I'm doing just fine on the sex. In fact I've never seen or heard a girl like this. I'm not bragging this girl is a crazy nympho! But am I the same alpha who started the relationship? I feel I'm slipping.
When I met her I had left a relationship 48 hours before. I'd spent the previous weekend with that girl. We said good bye and I was kind of cut up. I then met this new girl and I carried a genuine air of 'I don't give a fuck'. Whether she met up with me or not I really didn't care.
I did my own thing and made her do a lot of the leg work and chasing e.g. travelling to see me, cooking me meals. I went out with the boys and took the piss at times rocking up to her place late at night drunk after being on another date, which I preceded to tell her about. Despite this, or maybe because of it, her interest levels were through the roof. I had a series of fun compliance tests like asking her to meet me in a short skirt without panties (I then had fun taking her to meet my friends for the first time

). She got her nipple pierced after I told her that it would really turn me on. She's a good girl who likes to be submissive and realises that relationships work well when we revel in our own unique masculine and feminine qualities. One leader and one follower.
The thing is as we get closer it's impossible to maintain my original alpha 'I do whatever I like' attitude. I'm more invested. I care about her. I don't feel like I could happily turn my back on this now. I don't need her, sure, but I do like having her in my life. Over time these feelings are only going to get stronger. I'm going to care for her more. I may feel annoyed if you chooses to not make time to see me. 6 weeks after we met I took off to go rock climbing for a couple of months. I'm already feeling like I don't want to be away from her for that long again. I also can't maintain my 'we always do crazy things together' frame. You can only show her new things and activities once...
So how do you stay alpha when you're becoming closer and possibly falling in love? At the moment I'm seeing her a couple of times a week. No sappy 'Goodnight baby text messages'. No calling her on the phone to just chat, only to arrange the next meet up. I've also framed it in such a way that I don't want this from her (she's been very low maintenance so far so hasn't been an issue). I'm also keeping an air of playfulness and flirtyness. We make fun of each other and I tell her off if I pick up on her trying to make me do something or testing me. I tease her when she tries to be dominant and call the shots. I 'punish' her in the bedroom if she steps out of line (she loves to be spanked). I think I'm playing it well but I have to keep telling myself 'stay alpha, stay alpha'.
The final point is she is now asking me what we are. She says it's starting to feel a little silly referring to me as her 'friend'. Do I accept the girlfriend / boyfriend labels? To my mind it's great as things are. We are really close, great sex, no commitment, no possibility of breaking up as we aren't going out, open to see other people (although I don't feel the need to make moves on other girls at the moment). Is this commitment phobia or ultimate alphaness? What benefits does a relationship give me? Is she likely to change the second we become a couple?
Thoughts, laughs, suggestions, criticisms all exceptionally welcome.