My Girlfriend from Spain has been in the US on several occassions for several months each time, however on her last trip here they refused her and told her needed a visa to return and sent her back to Spain.

If I go to Spain to marry her, will there be any obstacles in her being allowed to enter into the US since she was refused recently?

Does it take long if I apply for a fiance' visa and the fact that she was refused recently have a bearing on getting the visa?

What are the best steps to take without having to be separated for very long?