Jasprose says here that they recall the lives of many Roses.

Jasprose says here that Karkat is in a matespritship with someone on the meteor and Vriska says here that Karkat was very cagey about his romantic affairs. Also there’s this vine of Hussie confirming davekat. 

Yes, Equius is a vegetarian. On this page he says that animals are for admiring only. 

Yes, the aspect Time is associated with many themes of progression and inevitability. It’s also associated with death. Dave has an interest in dead things and so does  Aradia with her archaeology. Lord English is the embodiment of death in troll culture. If you want to learn more about Time check this page. 

On his introduction page it says he likes to collect dead things preserved in various ways and he mentions paleontology specifically here.

Caliborn is a Lord of Time. As a Lord of Time, which is an active dominating class, he embodies the destruction that the Time aspect is associated with. He will completely dominate the aspect of Time and manipulate it to his will.

Tavros was planning to propose to Vriska at one point and Vriska has frustrated concupiscent feelings for Tavros. 

Why would you ask us, a Homestuck fact blog, this 

Hussie mentioned this in his formspring but most of the fandom just pretty much ignored it. Many have interpreted it as a joke. 

Not from what  we’ve seen.