As individuals, God's people will be guests at the marriage of the Lamb; but as a corporate body, those who are ready when He returns will be the Bride. The Book of Revelation does not confuse the two entities.
The true significance of 1888 is that the Bridegroom-to-be appealed to His Bride-to-be to surrender to Him fully in a more intimate relationship than any previous generation of God's people have known. According to 1,812 pages of Ellen White testimony He was "in a great degree" rebuffed, scorned, even insulted. The Song of Solomon vignette encapsulates the history.
There is no way that the Bridegroom-to-be can experience vindication except by the repentance of that same corporate body which insulted Him. The appeal in Revelation 3:20 is for that corporate repentance to take place.
Three possible reactions to the appeal are: