For those asking why he asked for advice and then ignored it, that would be for the same reason that every other person asks advice of strangers on a forum and then ignores it. His mind was made up over what he was going to do (meet her) and he was here seeking validation of that decision because despite making his mind up to go meet her, deep down he still knew that it was probably a bad idea and he hoped that someone here would tell him that it's a good idea and help him quiet that pesky voice of reason in his head.
What I still don't get and/or like about this story:
1. I didn't see where you were from though I'm assuming US, UK, or possibly continental Europe with decent English skills (though something about your writing style and sentence structure strikes me as odd in a way I can't quite place.
2. Despite your doubts you still you still went to Russia to meet her which seemed to be a significant distance to travel for you and I assume a significant cost.
3. You're cagey with the details, which change a little bit as the thread goes on, you think about her all the time then it's just for a laugh, and back again to ok I have feelings again. Maybe because you're conflicted or maybe out of attempting to keep you and her anonymous, or maybe still because this could just be an exercise in creative writing. I'm operating under the assumption this is all true because otherwise why bother commenting?
4. You talk about worrying if this is the "long con" but are convinced it's legit after your first meeting. The con could just be longer than you think.
5. From what you have said I get that this had gone on for at least about 5 months prior to you going to meet her, you don't really say how long you had known her before you stopped spending money on her initially. I'm assuming you partook in major international travel to meet someone that you knew maybe roughly a year and had little to no contact with for a large amount of that time.
5. If we really want to go full tin foil hat paranoia, who is to say you aren't some scammer saying this just to put into member's heads that traveling to another country to meet a model can be perfectly safe and work out like you hoped? It sounds paranoid I know, but it wouldn't be an unreasonable psychological warfare tactic, create the belief that a successful meet is possible to increase the likelihood of more suckers flying over to get fleeced. Yes my time in the military has maybe made me a little un-trusting, maybe even paranoid but a healthy amount of paranoia and/or skepticism can also keep one alive and with all factory installed components still attached.
If I had seen all of this before the trip I would have said don't go. You said there were initially some red flags when there were in fact more red flags than a damn Chinese military parade and even if it was all legit, it was going to still cost a lot more money in the future if this becomes something serious. If it's all legit I hope it turns out well for the both of you. You're still an idiot for doing it though, I'm not going to sugar coat anything. You made your mind up and came here wanting to be told you made the right choice and still went after just about everyone said bad idea, don't go. Don't let your guard down yet, this is only the beginning if you continue talking to her.
You seem to have some feelings for this woman, that would partially explain your abysmal decision making, and I'm not kidding, this is all one long string of bad decisions that apparently turned out OK for you so far. Use caution moving forward and if you ask advice in the future and 99 out of 100 people say "wow, that's a bad idea, don't do that", try to set your emotions aside as much as you can and re-evaluate what you are doing.
In conclusion, you're an idiot that makes VERY bad decisions. That said, I honestly hope things workout for you and that this all has a decent conclusion for everyone involved.
Best of luck to you, idiot