Am I bisexual or BiRomantic? ?

The split attraction model is useful to many asexual and asexual spectrum people, ESPECIALLY. But that doesn't mean it is useful to everyone! Strand does, indeed, have a point. In as much as for sexual people..? Their feelings of romantic attraction and sexual attraction are usually connected and intertwined. Not to mention, compulsory heterosexuality is a tricky beast. You should read more about it!

You could, in fact, just be a lesbian. And even if you're not fully that..? Probably you'd rather be with someone you're attracted to on ALL the different levels, (a female), than someone you're just mildly attracted to on ONE level, (a male), right..? Even if your supposedly just romantic attraction to men is indeed real..? It would still make infinitely more sense for you to pursue a relationship with someone you can truly share ALL the different parts of yourself with! Including your sexuality, and a shared sense of sexual attraction. Which.. asexual people don't really have that opportunity. But you do!

..Still somewhat annoys me when someone just says the split attraction model is CATEGORICALLY not useful, though! Okay, I get it. It's not for you, and it's not for everyone. But speaking as a panromantic grey asexual, who spent most of her life being confused as SH*T? About why I would have all these romantic crushes, yet feel no sexual attraction to the people that I was in love with, regardless?? It's been HELLA freaking useful!! And explained SO much!! And when people try to deny that, by saying it is GENERALLY not useful..? I get kind of cranky! Try being a romantic asexual, and walking a mile in our shoes. Sh*t ain't easy. And it's often VERY, very confusing.

Biromantic homosexual 

It was only a few years ago that I wouldn't have understood your question.  But my wife taught me then that there is a difference according to females between loving someone and being in love with someone.  You love both men and women, but are in love only with women.  You are clearly not bisexual; you are lesbian.  But I suppose you can call yourself bi-romantic, it seems to fit.

The split attraction model isn't useful. Sexual and romantic feelings can't be neatly separated from one another. Trying to parse your identity in to a thousand little boxes will just make it harder to understand yourself and what you want. The concept of romance is a very subjective and heavily influenced by culture. You were raised with the expectation that you would eventually be with a man, and dating men has no social stigma or consequences. Are you really romantically interested in men? Or is it just easier to be with them? 

I don't understand how you can be romantic without being sexual - but what do I know, I'm an XY.  Consider yourself fortunate because you have a much greater selection.