I understand the worry, as similar thoughts crossed my mind when I was younger (more newly diagnosed, and dating around). I have to agree with the majority of other posts: love will prevail! I think it is important to educate someone you are seriously dating (when you are comfortable doing so), but you can bring it up casually initially. It is important that she/he understand some of your actions (taking your blood, injections, and in case you have a hypo you need to treat) and also the lifestyle. But, frankly, I say if he/she is willing to focus on the disease and is uncomfortable pursuing a relationship (or bails even before you start a relationship), good riddance!!!! Personally, some of the most important qualities I look for in others is open-mindedness, compassion, empathy, etc.
I am not saying being the partner of a T1 diabetic is easy - I actually think it's a big 'responsibility.' That said, I met my partner when we were 18 and he was very comfortable with my T1. Also, keep in mind normally romantic relationships progress gradually, so by the time we were in love, my husband wouldn't have traded me for the world!! After reading this post I actually asked him what he remembers thinking of my T1 in the beginning, and he said "I didn't really." While I recognize that we were young,w hen you're falling for someone other things are more important - comparable values, personality, chemistry etc. 7 years later - he has helped me through many terrible hypos (at very inconvenient times!), shifting doses when traveling, eating low-carb, researching new diabetes technologies etc.etc. etc. I really feel like I have a partner in diabetes now... [Let's keep in mind I also endure his eccentricities, all his allergies, our communication differences, etc. etc. etc. ]
So hang in there... Yeah, maybe you won't end up dating a needle-phobe, but oh well! It's amazing what human connection overcomes and, as stated previously by a wise poster, there are hurdles in every relationship. Just take care of yourself (mind and body) and I really don't think T1 will be a problem in your search for that person!