Jealous!Diluc x Drunk!Reader

                                    

                                          
Includes : Jealousy, Possessiveness, Alcohol usage, Kissing, Drunk(silly) behaviour(not abuse),,
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You were just sitting in Angels Share, sitting opposite a blue haired man. The calvary captain. Kaeya.
You had just drunk like 6 bottles, waiting for Diluc to finish his shift, so no doubt you were already drunk.
When you got drunk, it was like you were unaware to everything around you, and you were quite flirty.
And worst part of all, you were sitting opposite a man, known all over Mondstadt for his charm and his flirtatiousness. 
Diluc, watched from behind the counter, as he made a cocktail for a woman who had requested it, and he narrowed his eyes, as you were drunkenly talking about something to Kaeya, as he was smirking. You were also downing another bottle, while talking.
Diluc couldn't hear your conversation, due to the fact that he was behind the counter and so far away from you, but he did try. Amongst all the other noisy guests, he managed to catch a few incoherent words from you.
You were talking, your hand movements were very random, and you were just laughing along with a drunk Kaeya, as he made jokes, and you just kept adding to them, and in the end, you both just couldn't stop laughing.
And boy did Diluc get mad.
He should have been the one making you laugh, not Kaeya, not anyone else. He hated how charming his brother was. He absolutely despised Kaeya in that moment.
Now, Diluc wasn't one to speak out about his emotions, especially not one like jealousy, but he definitely wasn't a stranger to that feeling, as you enjoyed alcohol and got drunk very often. However, when you got drunk, it was just the occasional flirt to a random customer. But this time, it was different, you were drunk, and talking to Kaeya. 
Diluc's fist clenched as he glared at the two of you, both of you already intoxicated by the alcohol, yet still going for more.
'Uhm, excuse me sir, is my drink ready?' The woman asked, as Diluc was still standing there, the cocktail she had ordered, on the counter in front of him.
This seemed to snap him out of it for a moment, and he forced a smile to the woman. She was innocent, she just wanted a drink, she shouldn't have to deal with him and his anger.
'Ah, sorry ma'am.' He said, apologetically, as she handed the woman her drink. She said a quick thanks, before she rushed over to her friends.
Once the woman turned her back, Diluc immediately locked his gaze onto you and Kaeya, who were laughing away, right at the back of the tavern, in the dimmest corner.
He gritted his teeth, and decided to ask Charles to tend to the bar, while he went over to you.
He walked towards you and Kaeya, and you didn't seem to notice him approaching, so Kaeya just pretended he didn't either, and he continued to tell his story, and you leaned closer towards him, since he started whispering.
You clasped your hands over your mouth, surprised when Kaeya told you something in his story.
'For real-? Holy..shit..!' You said, before you drank from the bottle again.