Sakura values shinobu's advice and input in her career yes but that's not all we saw at least with 133 was involved that side eye she was giving shinobu wasn't from a woman who just wanted someone to tell her what to do there were most certainly feelings there. I reread 133 she is shown depressed when saying shionbu cheated on her and then they try to cheer her up so it is explicitly shown she is depressed about shinobu so yes she still has very strong feelings twords him there even love one would say after all this time provoking such a strong reaction out of her.
Like i said both of them probably have lingering feeling for each other because both felt impacted for losing both presences in their lives.
We saw Shinobu feeling really depressed in 131,that made even all his coworkers worry about him because he didn't answer their mensages and we saw him making a mention for Sakura,and we saw him not having any resentful feelings for Sakura even after what she did for him and wishes the best for her,and when Fumi was cooking for him he mentioned Sakura so lingering feelings still exist here but it was showed that Fumi is trying everything to support him for his work and that she'll do everything for him because she loves him and that lingering feelings that Shinobu has for Sakura made her feel insecure about herself and that was the reason why she wanted to do the sexual scene.
For Sakura's case we saw her doing a forced smile in 131 because of the blondie put her hand in her cheeks but she was really sad in the scene,in 133 she had their conversation with Nagi and Mio and once again she showed a sad face when Shinobu was mentioned and tried to do a fake smile but we clearly see that she is really sad when Shinobu's topic started and we saw her valuing her time with Shinobu with gravature work saying that was fun and in 134,we had the conversatio with Fuckboi that showed the way opposite from Fumi because he did not give the support that she wanted and we can see that their relationship is really distant for lovers, and after that we saw her having the conversation with Mio and Saying that because of Shinobu she was able to give her best because of him and now that he is gone she doesn't know what to do now that he isn't with her and we see that she isn't happy with her actress career and that Sakura's monologue in my opinion can be interpreted that she values Shinobu in both aspects(personal and profesional).I understand when people say that she is just talking about profesional aspect but i see that being really implied that she is talking also about the personsal aspect from Shinobu and it is made in a subtle way.
In short words,yes i think they still have lingering feelings for each other.And i see that they both "suffered" because of their separation and we see those lingering feelings in a subtle way.But also we see the difference how their respective partners handle their situations because Fumi shows that she'll support him no matter what and i think she is really helping Shinobu in his worst moment and we see that Shinobu has some feelings for her, and with Fuckboi will not do the same effort to support Sakura(and that makes the break up really possible to happen) and we see that she is not happy with how is her life right now.
So for me the ending with Sakura x Shinobu is possible but it would take a really good effort to make that possible and i thing the likely ending will be Shinobu x Fumi and Sakura pretty likely to be single because her relation with fuckboi probably won't last that much.But i can see a reconciliation happening because of this ligering feelings that was showed by both Sakura and Shinobu but it would take a big forced drama to that happen.
At least Shinobu and Sakura will end as friends because with Shinobu's personality and we were showed that he does not have any resentful feelings toward Sakura i see that they will end at least as friends and coworkers.
Sorry for the big text🤣