Make a new first impression
After you've been away for awhile, you'll have the chance to make another 'first' impression when you're ready to interact with her again. If you can play it the right way, she'll start to see you in a whole new light.
>>Look your best. Put extra effort into looking as good as possible when you feel like you're getting close to seeing her again. That way, your next meeting won't catch you off-guard.
>>Make your intentions clear. If you want her to see you as boyfriend material, act like it! Flirt with her. Maintain eye contact. Pay her a smoldering compliment. Don't just fall into old habits and act like you worship the ground she walks on. Make her feel special, but not at the cost of lowering yourself.