I find most girls I have met either:
Don't like it. They say its weird amd really want their man to be manly. I can totally see this. I always tend to date girls that will wear skirts and I don't like it when they (or me for that matter ) wear pants. I always like my women to be really girly. I think thats why I like the "*******" pictures on the internet: They tend to be ultra feminine more so then regular girls.
They tolerate it. They don't think its bad but they don't really want to date girls or are attracted to feminine things.
A few (the ones we all wish or are lucky enough to date) gets some kick out of it kind of its like a fetish. I dated this one girl that liked me dressing up but only if she could do it. For some reason she said she didn't like it when she would come home and I was dressed up. This is what makes dating so hard for me. I don't like meeting people online: I can tell in 30 seconds 95% of what I need to know about you. How do you ask a girl out only to have her realize shes also dating someone else: We even give names to ourselves when we dress up; its hard to introduce two people at once and have them like two people. Its also hard to get them to realize its two sides of who you are and not just some perversion as most people (ignorantly) see it.
It would probably be best to meet a girl while you were dressed up. That way you know instantly if she likes it.
Realize that it can also be hard for the girl to tell her family or friends that shes dating a "crossdresser" or "insert label here". She might be afraid that people might think she is a lesbian or bisexual. Or even think she is some sort of pervert.
What I have noticed from watching the few documentaries I have seen like "My husband betty" is that most of the wives if I had to guess their orientation seem like lesbians. The better you are at dressing up the less she is seeing a man. I know I have no attraction toward women that never wear make up short hair and baggy clothes. Even if they are good looking. If you look and act 100% feminine you are asking her to be attracted to a woman. Would you still be attracted physically to your girlfriend if she altered her appearance to sound smell walk talk and dress like a lumber jack? Thats what you are asking her to do when you want her to be around your femself.
I once went out with this girl when I first met her she was so pretty and all dressed up. She was pretty just naturally. But I soon realized she hated wearing skirts, make up, or doing up her hair. I just couldn't get attracted to it. I had paid to get her hair done up and first thing she did was straighten it out and tie it up in a pony tail.
I had a point to all this but it escapes me now... Maybe try to realize that your dressing can be just as hard for her as it is you and that unlike you she doesn't have a choice in the matter. I could see that if a girl doesn't like my fem side the relationship would eventually fall apart.