Sasuke gets the Mangekyou Sharingan in episode #141, titled “Truth.” It takes place during the “Fated Battle Between Brothers” arc and features manga chapters #400-402. Sasuke got the Mangekyou Sharingan after witnessing his brother's death.
After Sasuke's fight with Danzo, Sasuke's Mangekyou Sharigan deteriorated to the point which he was nearly blind. That is when Sasuke ask for Obito to transplant Itachi's eyes into him, causing Sasuke to obtain the Eternal Mangekyou Sharigan.
Later, he decided he needs the increase of strength in order to kill Naruto Uzumaki, along with the severe deterioration of his eyesight from overuse, Sasuke accepted Itachi's eyes transplant.
It was 424 episode of Naruto manga anime television titled “ To rise up” In which the Rinnegan is seen for the first time in sasuke's left eye and it's the episode in which Mangekyō Sharingan gave the Rinnegan to sasuke.
The reason is, Sasuke has literally half of Hagoromo's chakra. He already had Yin chakra from Indra's soul. When he met Hagoromo, he got yin part again and naturally, awakened only one rinnegan.
Itachi never completed any of the above-mentioned processes, hence, he never awakened the Rinnegan. Rinnegan's source of power is Hagoramo Otsusuki. And since he has two children, Indra and Ashura, his power is split up into two parts.
Sasuke does not have the Tsukuyomi. What Sasuke uses is the Sharingan's standard ability to cast genjutsu through eye contact with its "eye of hypnosis". In the past, Sasuke has personally it used on Sai, Orochimaru and Deidara and we've seen it used by Itachi, Kakashi, Obito and Madara on different occasions.
No, he doesn't know, even when obito shows itachi his face. Before that, itachi did not know much about obito, he only heard about obito fought bravely and became the hero of Konoha while commemorating the shinobi who died in the third Great Ninja War.
Yes. Obito was afraid of Itachi. But it's not that Itachi was stronger than Obito. Up until Itachi was alive, Obito had Hashirama Cells, Kamui, Izanagi and some other common jutsus which were enough to defeat Itachi, if used wisely.
Boruto won't get the Rinnegan and I'm sure of it. It is possible that he gives his eyes to Sarada. If Sasuke dies, it is likely that Sarada will unlock the MS and with Sasuke eyes, she can also get the EMS. In the Naruto verse, the children almot always surpass their father/teacher.
An uzumaki can never awaken a rinnegan. First of all rinnegan is the ocular dojutsu obtained after sharingan via chakra of Ashura (Condition being an Indra reincarnation) .
She is continuously fixing herself in front of you. She might knowingly or unknowingly do this as she is risking fixing herself in front of you while she has your attention already because she cares about what you think. Hence, she is making an effort to look perfect and stand out.
In a healthy relationship you should not have to beg anyone to stay. If the other person does not want to be in the relationship begging them to stay will only lead to them losing respect for you. Begging someone to stay implies they do not wish to be about of the relationship.