I need advice on what to do?

I am in a potential serious relationship with X, he has been someone am seeing for a long time now, then i met Y when I recently joined my new office… Y has had a lot of excitements i love, he is a free soul and romantic… we even had sex recently and it made me more attracted to him… Y knows i am serious dating X, and i was avoiding to show him any signs if whatever we had was making me fall for him, so i kept all my emotions hidden and acted like he wanted me more which is not true… ofcause i avoided him coming to my place but he would invite me to his place of which i visted once and we had sex which was soo good… he is a very focused guy and was ready to keep all this low key as he was not dating but we both enjoyed each others company amd we don’t want to rise alarms at work…

Anyway… recently he checked out and told me he doesn’t want us to get involved anymore, and this is killing me inside cause i really need him around, having him around makes me feel good for X as i am already satisfied with Y and i get in a very good mood… i have very confused emotions… i need advice on how i can handle this and why is Y checking out now, does he hate me? What can be going on in his mind? I recently texted him that i am fine if he needs sometime away, i respect his decision but we are stuck together… i will be around waiting calmly… am i doing too much? What is happening to me?🥺🥺🥺
I need advice on what to do?
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