I honestly don't know if there is a correlation between OCD and romantic interest in somebody, I can't help but think that meds wouldn't increase your feelings for somebody else. Wish they made a pharmaceutical love potion? I instantly thought of the movie Garden State when I read your post.
I'm guessing that it more borders on a kind of depression or possibly low self esteem issues. I'm just saying this having experience with both. I've had three fantastic women in my life that seemingly wanted to give me everything and were head over heels in love with me, and I just didn't care. At first I did everything you would expect a fantastic boyfriend to do and it was all fun and exciting during that honeymoon stage. After a couple months, and they already admitting they were in love with me, I kind of just checked out. Gave the bare minimum, didn't care, and actually got annoyed with they cared about me and wondered what was wrong with me. I in a way sabatoged the relationships and when it was over, I rarely cared also except for the last one. My last girlfriend seemed perfect, the hottest girl I ever been with, smart, funny, everything. She would try her hardest with me and I just took it for granted. Alot of it stemmed from my problems and how I was unhappy with myself and even felt like I didn't deserve what I had. I kind of feel like at times I just float through life and don't really care about anything.
I could be way off but that's something I know about. Maybe you can relate, maybe not.
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