Suzuka’s kiss with Junior was real, and they held hands afterward—nothing else happened—but she might use this as a weapon from now on to make the MC jealous; after all, she remarked something like: "Things went well that day because Junior-kun said that to me... at this point, I’d almost rather..." (What did she mean by the end of that sentence? Cheating?)
Ria appears looking pensive and melancholy (she’s likely plotting her next move, and I have a feeling she’s about to do something incredibly stupid), and Suzuka approaches her, asking to have a word.
Finally, the MC wakes up with Ria’s wealthy friend on top of him.