What would’ve happened if Taylor and Matty stayed together?

Say Matty hadn’t ghosted and they’d stayed together, what do you think their future would’ve looked like? What would TTPD/TS11 be like? Were they inevitably going to break up or could they have made it work?

Personally I think they were always going to burn out but the alternative universe where we got slut! ft. the 1975 and a different version of TTPD is fun to think about.