L19, L20, and m20 can be tricky. Only have her stay home sick the first day then hang out with her (sex or not). When you get an option to choose "warm and cozy" pick that for L19. You'll get L20 when she goes for drinks with Sam and M20 you'll get on one of the days for one of Matt's sharespace posts.
M68 you just missed with M67, you get them at the same time. M87 you probably missed as well, you get it the day they are leaving the campsite on happy path.