In the end… Di Tou didn't accept Jian Da Yu's offer. Although he was indeed somewhat interested in meeting Jian Xiao Yu again, it wasn't like something he was dying to do, nor was it pressing. More importantly, given the situation, explaining how he was Yin Shi Tou aside, there was no way the situation could develop organically.
With the four former and current sect leaders breathing down his shirt, how would Jian Xiao Yu be of any mind to talk to Di Tou like an old friend! No matter the interaction, it would end up somewhat politicised in nature, and what Di Tou was interested in was meeting an old friend, not in more politics talk that just happened to be with a familiar face.
Seeing this, Jian Da Yu seemed disappointed for a moment, but with nothing else to discuss, Jian Da Yu didn't keep Di Tou any longer, so after once again bidding farewell, Di Tou took a few steps to exit the pavilion, before using his Void Returning Stage powers to move to return to the Central Continent.
