Personally, I would get another account and pay to take her private... hahaha
At least then you could get an idea of what you're working with. See if she's a major freak, figure out many miles are on that body, etc. 😂😂😂
On the love part, I'm sure that one could fall in love with someone's personality after talking for some time even if they've never seen that person.
She claims to love you even though you've never met in person but at the same time, you've proposed to her having never met.
The meeting of family could be legit or it could be that she is trying to get you fully on the hook. Bonding with her family can make it harder for you to say no later when one of them gets hit by a meteorite and is in the hospital with no money for medicine. Hahaha....
Being on the outside looking in, I saw a few red flags as others have mentioned above already.
I believe that I would be slowing things down here until such time as you can actually meet and hang out for a while with each other. It's easy to be one thing on chats and video calls, it's quite another to be in a persons company to see how they really are.