The summary is:
The speaker is Lena, a YouTuber who makes videos about checking people's loyalty. She received a message from a subscriber who asked her to check her boyfriend, who is in prison for theft and has been communicating with her online for a year. Lena writes to the boyfriend pretending to be another girl and he falls for her quickly. He also asks her for money and tells her poems that he copied from the internet. Lena tries to convince the subscriber that the boyfriend is lying and using her, but the subscriber defends him and blames Lena for ruining their relationship. Lena tells her that there are many stories of women who were deceived and exploited by prisoners, and that she should not waste her youth on him. She also warns other girls to be careful of such scams. She asks for likes and comments and ends the video.
Here are the key facts extracted from the text:
1. The text is a transcript of a YouTube video by a user named Lena, who checks the loyalty of her subscriber's boyfriend, who is in prison.
2. Lena communicates with the boyfriend through Instagram and pretends to be interested in him, while secretly recording their conversation.
3. The boyfriend admits that he is in prison for theft and that he has four years left to serve. He also says that he has no friends, family or money to help him.
4. Lena finds out that the boyfriend copied a poem from the internet and sent it to her as his own. She also learns that he has a girlfriend who sends him money and parcels, and who is saving up for a lawyer to get him out early.
5. Lena confronts the boyfriend about his lies and cheating, but he denies everything and tries to manipulate her with pity and love.
6. Lena sends the recorded conversation to her subscriber, who refuses to believe that her boyfriend is unfaithful and blames Lena for interfering in their relationship.
7. Lena ends the video by saying that she tried to warn the girl and that she hates when people cry like that. She also asks her viewers to like and subscribe for more videos like this.