So sakura actually cohabitating with yuma, you can see that she changed her footwear from shoes in previous chapter into slippers in this chapter while still wearing the same suit, she also call him yuma without honorific, so she indeed agreed to be his girlfriend. After that she went out again to vent out because of her dissatisfaction of yumas reply. We can see that she return back to wear her shoes while waiting for the traffic green light. Shinobu may not be cohabitating with fumi from the looks of it, he still outside for god knows what while fumi thinking over the offer lying on her bed.
so up to chapter 134:
sakura-yuma = had sex around 100 times
shinobu-fumi = had sex around 30 times