Sources? All the information I'm seeing on Alex suggests it was both.
Airaku, no one is trying to make a case for Alex/Albert. It's just silly for you to say that Alex/Albert is as wrong as Chris/Claire. Because A/A is not even incest. Some people might think it's incest because they falsely believe that Albert and Alex were 'created' by Spencer, but you know that's not true.
How exactly are they related? They don't share the same parents. They both were abducted by Spencer and experimented on and thus Alex finds Albert relatable. I think of my BFF as a sister, but it doesn't mean we're actually related.
My bad. Certainly wasn't thoughtful of me. I realise now I wasn't very clear.
1) I haven't seen anything in the game that mentioned it to be romantic relationship. Stuwart said she was gravely saddened, and that she doubled the efforts in her work. Almost as she also realised that even a worthy Wesker (a god) can die.
As for the source. I know that Project Umbrella is sketchy as one of their writers makes some outlandish bull**** claims, but this is a good interview imho.
http://projectumbrella.net/articles/Yasuhiro-Anpo-Interview-Project-Umbrella
"Q8) When was the painting with Albert and Alex drawn and how did they know each other? Alex seems to have romantic feelings for him, as well as viewing him as a brother and an equal, an oddly close relationship that parallels Gregor/Grete in Kafka's The Metamorphosis, as well as Jupiter/Juno in Greek mythology.
Albert and Alex are two of the Wesker Children, who studied under Spencer, and it's possible that this was painted at that time. They were the two "chosen" ones, and existed as rivals meant to give each other even higher standards. As such, Alex does think of Albert as a brother, and it seems that she very specifically related Gregor and Greta to Albert and herself."
That certainly seems like sibling love to me. I think Anpo made it quite clear in that reply. Doing some reading on Metamorphosis, it's a lot like how Alex viewed Albert. Cared for him and then abandoned him and eventually became worse then him. Alex made a huge point of how Spencer/Umbrella (symbolising the family in the book) abandoned Gregor (Albert) and she was afraid the same would happen to her. It's a very interesting contrast. I don't see how people attach this whole romantic crap with them. I really don't.
I also like how he mentioned the power within Natalia is actually from Alex and not the T-Phobo's virus. I have no idea how the hell this is possible lmao. It makes no sense, the virus that gave the Wesker's their power (technically the combination of that and Birkin's modified T-Virus in Albert's case) is a biological thing. The whole spirit transfer thing that was mentioned in the Japanese translation of one of the documents (I can't seem to find it now, I did copy paste it, but is that proof? xD) thing makes sense. But there is no way in hell that a biological virus can transfer with a "spirit" wtf? Alex definitely needed to do genetic enhancements to transfer that.
I love how she has crazy strength were Albert was speed. Interesting food of thought. My question is if that other bull**** was a power. Plus her ability to analyse and read people (not a power, just an incredible eye for detail, this was noted in RE5) makes her potentially the most threatening and powerful RE foe to date. Seriously wtf? It's brilliant!
2) What you said is indeed true. Personally, I find both to be messed up from my perspective. Through their ideals of being siblings in that sense, not blood related, but it still seems a little weird to me. Then again childhood friends sometimes do become lovers. On the other hand the Wesker children were seen as siblings to Spencer, but they were also separated and did not know of one another. The project was compartmentalised and considerable amount of care was taken to ensure they did not know. At least until Alex figured it out after she was trusted with the knowledge.
This is irrelevant but on a side note. I love how the sibling picture (which clearly Capcom put there for plot reasons to show their relations) Alex kept in her throne room portrayed Albert as being bored and looking like he didn't want to be there. Where Alex, standing above him was all prideful about it. I don't know if it was intended symbolism by Capcom or not to have Alex towering over Albert.
3) What I meant by Alex and Albert to be related. I was referring to what you said about Alex and Albert going through the same procedure through Umbrella and being part of the same project. Alex being more self-aware and knowing of the project as Spencer, who favored her, entrusted her and have her oversee Project W. at one point. She could relate to Albert more because she understood what was going on and was aware. Albert on the other hand was more oblivious to everything and was far more interested in his personal development and evolution. It was through experience that Alex could relate (related in past tense) to Albert. I used a poor choice of words in my reply.