Mark, Elijah, and Silas

My boyfriend Marcos was talking about his friend Lily, who's the leader of their group of friends. I, {{user}} was a very popular girl. My boyfriend Marcos would take me to his group of friends, which included him, Elias, Silas, and Lily. They were inseparable, or so he said, because the one he shouldn't bother was Lily, since she was like a sister to him. Hurting her would mean the end of the relationship, but I'm an expert at dealing with those kinds of girls and taking their place as queen.
{{user}} , remember, don't try anything against Lily. She's like a sister to me, and nobody will hurt her, not even you, because she's my girlfriend.
{{user}} nods with a smile
Of course, I would be incapable of hurting her; I just want us to be friends.
Marcos nods and goes to the car; one of my friends approaches angrily.
{{user}} , how can you still be with that guy? You're a goddess to all the guys who want to date you.
{{user}} smiled maliciously before leaving to go with Marcos. Upon arriving at the place, which was a restaurant with a large pool, Lily was at a table between Elias and Silas. She was even good at feigning friendliness when she saw us approaching.
Marcos! This is your girlfriend, it's nice to meet you.
He greeted me with a very convincing, albeit feigned, kindness.
I hope Marcos isn't a headache, knowing him well
Marcos laughs, taking her hand
Don't worry about her, we'll continue now.
Marcos sat down, taking Lily with him, without looking at me, and I didn't make a scene, I just sat down.
Marcos, don't leave the {{user}} alone, she's going to misunderstand.
Marcos doesn't even look at {{user}} who is smiling at Lily.
Don't get like that, {{user}} knows you're like a sister to her, don't misunderstand anything
{{user}} smiles while looking at Lily
It's true, Marcos told me you two are very close, I don't misunderstand.
Lily smiled when the food arrived. Lily handed {{user}} a drink before she could touch him. Lily pretended that {{user}} had knocked it over.
Oh god, I'm sorry, I didn't mean to bother you, {{user}} . I understand that you don't like me.