Hi. I don't post much anymore but I saw this and thought I'd respond.
Yes, it totally is possible to be pre-op and have a male partner. I was lucky enough to meet a man who doesn't mind my anatomy. We've been seeing each other for almost a year and he's very kind. The most important part for me was learning to get over my internalised sense of loathing and worthlessness. I honestly believed the only person that would ever be interested in me was some kind of fetishist or closet homosexual that was only interested in me for the thing I hated about myself. I was completely wrong. Learning to accept I was wrong has taken a long time. He has never displayed any interest in my "donar tissue" never touched it, I don't think he's ever even seen it. My surgery is happening this year and he wants to care for me while I recover. I honestly have no idea how I found him but I'm thankful I did.
People are out there, male female and everything in between, that are just like you and I. Looking for love and companionship. Don't give up. Yes we got dealt a ->-bleeped-<-ty hand by nature and society but that's no reason to settle. You're the product of millions upon millions of years of life that didn't give up and fought to keep going.
All the best, you're a beautiful example of biological diversity. If people don't see and appreciate that, it says more about them than you.