I'm not even sure they were officially on. The whole thing was weird. Peter may have been fighting feelings for Madison, but production/Chris Harrison took it upon themselves to go to Auburn and stir things up, and then apparently surprising Peter with Madi in LA. I think production was hoping to rekindle something with them, perhaps knowing Madi's hesitancies and maybe even Barb's disdain for her. Everyone kept saying not even Peter knew how it would end, so I think Production wanted to leave it open for Peter to formally ask her to be his girlfriend or even his wife (hence why Neil Lane was there). Rumor has it he hooked up with Kelley in between breaking things off with Hannah Ann and seeing Madison again, so that could be why she was there too - in case he felt the need to confess. Peter's hesitant "yeah" when asking if he loved Madi, plus their distance and awkwardness on the couch made me think they were never a thing either and the whole thing was orchestrated by production in hopes there would be a spark again.
Ehh I wouldn't be surprised if neither gets it. This season wasn't well received and even though Hannah Ann came out looking much better than Peter, I still think they'd rather forget this dumpster fire. I would not be surprised if Clare gets it though, because her season will be more relevant when DWTS is casting and her Bachelorette announcement seemed to have mostly positive feedback. I think she may be popular.
In other news, its been confirmed Clare's season will not have any international destinations and its entirely possible the season may be postponed or cancelled. I guess we'll see!