Here are my suggestions. Sit down with your friend and show her all of the important “rapture” verses used by Protestants.
Compare 1 Thess 4: 15-17
with John 6: 54 and John 12:48
and John 11:24
The purpose of this comparison is show her that Jesus will only return on the “last day” which is the day of judgment. There will be no “secret rapture.” When Jesus returns everyone will know it and it will be the time of judgement.
The Catholic idea as to the meaning of being “caught up in the air” with the Lord is as follows: When Jesus returns on the Last Day it will be an event that is joyous to all the faithful. As you probably know many cultures have a custom of going out to meet and greet returning dignitaries. We do this for example when the President flies in on Air Force 1, or when the Pope comes to visit. Likewise, the faithful will recognize the Lord and be eager to meet and greet him. The widely practiced custom of greeting a king or dignitary upon their arrival will be beyond anything we have ever experienced and we will be caught up with the Lord as he comes to judge the world.
Rapture theologists also like to use Matthew 24:40-41 which says: “Then two men will be in the field; one is taken and one is left.Two women will be grinding at the mill; one is taken and one is left.” Luke 17:34-36 says essentially the same thing. The problem is that these verses are taken out of context and are thoroughly misunderstood by rapture theologists. Read all of the verses in Matthew starting with verse 37. You will notice that Jesus is comparing what will happen to the days of Noah and that those that are taken away are the bad guys. Noah and his family were left. In verse 39 of the KJV it says, “…the flood came, and took them all away;”
None of this refers to the “rapture” in the way some Protestants believe. Instead of a rapture of the good it is clearly a punishment for the evil people. Read all of Luke 17:26-37 and this punishment becomes abundantly clear. Luke refers to the similarity of these events to the days of Noah and the days of Lot. In verse 37 the disciples ask Jesus where those that have been taken will be going. His answer is, ``Where the body is, the vultures gather!’’ Some translations use the word “eagles” instead of “vultures” but the meaning is the same.
If you read the scriptures that your friend uses but in their proper context while remembering that Jesus only comes once at the end of time as seen in John 6:54, John 12:48, and John 11:24 it all becomes a slam dunk.