How "SECRET" is your love of shemales.

[Imconfused]

I have a question. I recently found out that my boyfriend loves to "wank" off to shemales.
What is it about a shemale that turns you on?

Also one night (awhile ago) we were have sex and I wanted to see how he would react, I rubbed my hand down his ace crack and then started to insert a finger, he didn't stop me. Infact when we were done he said you prob think I am weird for letting you do that to me... I didn't know how to respond. Anyways he took my hand and put it down there for me to insert my finger again. So I did.
I don't have a problem doing that, but my question is....if he likes woman with c@cks does that mean he wants to be with a real shemale, rather then just watching them?
Also for about the last two weeks, he has been "wanking" off to the shemales and has completely ignored me in the sex deptartment. Is there a problem here? Maybe he is thinking he would rather be with a shemale?
someone please humor me