Dill Mill Gayye S15 E64 Riddhima and Sid Get Married

Despite Armaan's absence, Riddhima and Siddhant get married. Siddhant is nervous about their first night. The interns give him moral support. Later, Siddhant messes up his room because of a cockroach. Riddhima is frustrated and goes to sleep. An upset Armaan plans something. What is it?