We know Geordi isn't a great ladies man. There was that awkward holodeck beach moment on season 3 and then the Leah Brahms incident... So, it was a bit surprising to see him acting the way he did towards Ensign Tyler in 'Phantasms' on season 7. If he didn't fancy her, that's fine, but the overall feeling was almost disgust and he just wanted to get rid of her. I'd imagine he would be a little bit more enthusiastic or polite towards a shy Ensign with a crush.