Well, nothing like making a huge mess than simply using the time skip tool to just jump to a future where everything is fine.
But yeh, ch 22 and honestly i dont see much of romance. They had a bond formed by need involving their fetish and after Yui father died felt like they were lot more closer as just 2 girls enjoying each other company. What Yui just described is also not really romantic since she wants peace without any feelings. U would imagine at this point she would have at least some desire towards Tsukasa.