Can someone explain "asexual biromantic" to me?

Current Events

Well..actually more like situations outside of that.

I met someone who described themselves like this recently and I feel like I mostly understand a lot of LGBTQ stuff, but I'm just not sure what it would mean to be asexual but solely be romantically attracted to e.g. women. Once you remove sexual attraction, it's not clear where sexual identity or gender identity are relevant when selecting partners.

This isn't a gotcha, I just want to understand.