We all know Kourtney Kardashian and Scott Disick have faced their fair share of ups and downs. The pair, who were together for nine years, officially ended their romantic relationship in 2015, but continue to co-parent their three children, Mason, Penelope and Reign.

Although rumors have been flying recently claiming theyre giving their love another shot , that doesnt appear to be the case in this clip from the upcoming episode of Keeping Up with the Kardashians . The Huffington Post is exclusively debuting the nearly 2-minute clip, which shows Disick talking with Kourtneys sisters Kim and Khloe about their situation.

Im still turned on by her, if thats what youre asking, Disick tells a curious Khloe before admitting hes not dating anyone else. I mean, I technically could I guess, but I just dont feel comfortable.

Kim chimes in to ask whether all the drama has caused Disick to give up on Kourtney.

No, I mean, shes a tough girl. Its tough sometimes, he admits, continuing, I feel like I would never be over her. Shes the love of my life, but I try to do everything to be there for her and theres literally no appreciation for anything, ever.

Their breakup was reportedly triggered by Disicks substance abuse issues he reentered rehab right before and a couple months after their separation in addition to rumors that the he was unfaithful to Kourtney. Still, Disick says in the clip that hes aware his personal problems have caused a rift between them, but will do whatever he can to prove to Kourtney that theyre meant to be together.

I hope that one day she understands I would never want to be with anyone but her, he says in a taped confessional.

Watch the full clip above.

Keeping Up with the Kardashians airs Sunday at 9 p.m. ET on E!