I read your post with interest. Please forgive me if I have this totally wrong, but from what you say about love, that is the primary thing that is keeping you in? I'm not sure that you mean that the Witnesses must be God's people, because they love each other? I'm not sure if that is your point?
Anyway it seems to me that if that is the case, then perhaps what you mean is that the love that the Witnesses show to you, the support that they give to you, the atmosphere of trust, mutual strength, is very important to you. In essence, maybe you have a strong support network, and that keeps you there? If that is the case, then I think that you are right to think twice before you start to either drift or walk away. It can take years to build relationships that you are comfortable with. In that case, if you do not wish to endanger that network, then be very careful whom you voice your doubts to. Sadly, the love is conditional - if you are branded as an "enemy" by the Witnesses, because you may not fully agree with some doctrine, then you will find that Jesus' command to love your enemies is not followed. I don't wish that upon you, believe me. Also, if you do not wish to endanger your support network, then I really would say to you that the internet, and sites such this, are not for you. There are facts on here, research and history regarding the WT and other things, that will utterly undermine your confidence in the claim that JW are God's only organisation. If you don't want to be torn in two, by knowing facts that fatally wound the WT. then, and I say this with love - don't expose yourself to them! People on these sites are generally very friendly and loving - but I'm sure you agree that it is not fair for you to expect them not to say things that will undermine your confidence - after all, you are on the website of your own volition, and you know how many people here feel.
On the other hand, if you do decide to leave, you will find that your statement - "there is no love outside the organisation" - is a complete and utter fabrication. I respect the fact that your experiences may have convinced you that people "outside" are not loving and supportive. With the greatest respect, that is just your experience. You could say that 7 million Witnesses agree, it's not just you. But there are far more people outside, who utterly disagree. If you want the criteria as to who holds the correct view as an exercise in numbers, then I think you know who would win. And since the Bible says "if a man praises himself, is it really praise", the Witnesses telling you how loving we all are, and how it proves how special we are, with God's blessing...I think the Bible verse above says it all.
As for your point about atheists, that is another discussion. Suffice to say that if you fear you would forget your Creator, that reflects more on you and your relationship with God, then on anyone else. Remember, Jesus said - "out of your own heart come...reasonings".
I hope I have not offended you in any way, and if I have, please accept my apologies. No offence is meant. I know that many people on here would wish you all the best. I certainly do.