Seems to be a picture of the lukewarm believer who still loves the world and the flesh.
She is in the group called to be removed from the wrath that is coming to Sodom and Gomorrah, but she doesn’t go. She is killed instead. We don’t know how far this type goes and we don’t know what happened to her spirit. God doesn’t tell us so we must not guess.
However, it is entirely possible that she really is a picture of the lukewarm believer who won’t be raptured when the bride is and who will stay behind and be beheaded to enter Heaven.
For sure, we can’t rule this out so we can entertain it to see if it jibes with the rest of the Bible and with the doctrine of salvation and sanctification and end day events.
Interesting thing is that it fits perfectly.