How can one be able to tell if a friend has ever had ?

So three close friends are talking and the topic of arises. Their names are Ramm, Archer, and Twine. As the names are ordered, so are the genders: two guys and a girl. Ramm and Archer are the eldest of the trio which obviously leaves Twine as the youngest. Twine tells Ramm and Archer that she has had with her current partner and so far Archer has stated that he believes her. Ramm is doubtful about this entire ordeal even though he is going along with it all for now. How can Ramm figure out if Twine is simply being childish and is faking her life? If knowing the friends' personalities helps then, Twine is a hyper ball of energy who often loses control of herself and acts irrationally, keep in mind she is still VERY young. Archer is an ytical soul who can easily see through another person's act when the situation arises. Ramm contemplates and is usually oblivious to his surroundings; keep in mind, he has chosen to internally doubt Twine, which is usually Archer's job.