I am a 30 year old, attractive lesbian, and I tend to only attract straight women. What's the problem?

I used to get off on having one night stands with straight women when I was younger, and I did that all the time back in the day. Now, I am 30, and all i want is to date a real live lesbian, but whenever a girl shows an interest in me, she is either in a relationship with a girl already or straight. What am I doing wrong? I'm not butch, but I'm not femme. I am in-between. I don't wear dresses, but I dress alternative-90's ish. I like getting pedicures, have a bathroom full of beauty products, and I am 5'11". So i am in between. Help!