are rebecca and that android girl from that show gay together

It’s not the android that we know, but the human Irena Shaw who created the Android (and many others, and in fact, partly, Rebecca herself). The Android we know looks like Irena.

Rebecca and Irena were gay together, yes, lol. Rebecca was a special new kind of advanced organism Irena was hired to help create, then Irena realized she was more than just a Thing and freed her and started to help other androids. In the meantime, they…fell in love.