It appears I have some weird occurance with my registration. I can post as a guest but not as a registered user, strange.
In anycase, I thought I would offer an idea for Valen's "Romance."
First, let's be serious, she is a vampire you aren't be "romanced" you're being "seduced." So for Valen we should call it "Seduction" whether than romance. But you're an evil PC right? Murder whole villages, loot and plunder, hang men by their intestines while their dog watches, you do evil stuff, and you're not one to be "seduced" by anybody. But just like any other Man(Man is just a generalization in this case, instead of saying he/she/man/women), you got to get it from somewhere. Particularly evil? Yes, but Testosterone is your master, whether you wish to admit or not.
So what I propose is kind of a mixed bag, you can take the submissive role and let Valen "seduce" you and you play along, and their goes one path the "Romance" can take.
Or you can take the reins, show Valen "Who da Man is"
and make Valen your Concubine. She had a Mistress, now you are her master. She is of course still evil and will try and betray you on several occasions but that's all in the game, it adds a certain spice and mystery to life. Makes things more interesting so to speak.
One can still argue that any kind of "bedplay" is unhealthy with a vampire, but that's a risk you take and don't care about you. You're the PC, if Valen does try something stupid you're going to hang her ass out to dry until she regains her sense and promises to "play nice." So you are evil but a sort of charming evil. I'm not sure if explaining this anymore will be worthwhile so I'll end now.
This idea was just to get around all the "Romancing a vampire isn't appropriate" hogwash. You're evil, you don't give a damn about what's "appropriate" and what's not. Most evil people have their own "morals" or way of life, but if a rule or taboo stands in their way it's broken. Besides some evil characters are connosueirrs of rare finds, how many people can say that they have a Vampire as their concubine or "Romantic interest." It'd surely be worth bragging about at the next "Evil people's cave of hellspawn gathering." B)
PC: "Very pretty wife you got their Tom." "That terrified face she has while my sweet Valen sucks the blood from her body is classic."
Tom: "Sonuva..."
PC: "It seems Valen gets a second helping tonight."