You politely refuse

"Excuse us, Andrey, but we already have plans" you smile.

You think that for a moment you see an anger in his face, but then he also smiles and says:

"As you wish. Maybe we'll have an opportunity to talk later."

You really hope that won't be a case.

"Andre can you stay for a moment?" Raven's cousin nods and stays albeit reluctantly.

"What's the deal with your cousin and this guy?" you ask Raven.

"No idea" she answers "but I don't trust him. It's good that we refused" technically you are the one who refused, but you don't correct her.

Andre finishes talking with Mikhailov and walks to you two

"So, let's meet our friends" he says.