I 24M is feeling suici*al after ending my 1.5 years relationship today

Ended my 1.5 year old relation today. Met her on a trip to Meghalaya last year. Everything was beautiful at first but LDR ruined it for both of us. We had constant fights at times but every time we used to resolve it together. She would at times block me on WhatsApp and call and I had to beg her by emailing her or texting her on UPI apps. Only last week she had come to my place (we live 1200 km apart). 2 days ago I had a house party organised by my manager where our whole team had come. I told her that I would need to go as I've previously declined the invitations of many such parties as I live in a different city with my parents and my office is in a different city. I was there but she was constantly being insecure. I told her there were only 2 girls and that too they were senior to me and like sisters(we genuinely treat each other as siblings). Other than that there were 15 people all males. She was constantly calling me.

I even video called her for 20 mins there and showed who all were there. I was partying after nearly 4 months and I got drunk and was not in my senses. She called me 4 times but since my phone was silent (I do it in my office), I could not pick her call. After about 20 mins I tried calling her back but she was constantly saying don't call me it's over and all. I tried consoling her even when I was wasted after which I slept.

In the morning also I tried consoling her but all of it was a waste. She was constantly saying things like my love is dead for you, you are fake and you are always lying. I've seen your true face and now I'm going with someone else. I'm moving on right now from you today only. She said her friends helped her open her eyes.

Even in our fights she has previously said that she is going to date someone else to even sleeping with someone and sending me a photo.

My mental health has deteriorated since the last 6 months and I constantly feel suicidal. She has blocked me from everywhere. This time I told her I'm going far away by ending my life and she said do anything you want, go die but don't come to me. I feel shattered. I feel like ending my life as this seems the easiest option. I was always loyal, never talked to any girl or made any female friends so that she doesn't feel insecure but now she is treating me as if I have cheated on her. I feel like ending my life now :)

I graduated from an old IIT, made my parents proud. I belonged to a lower middle class family where my father earns 20k per month. I'm suffering from health conditions like cervical radiculopathy and cervical spondylosis. I have a rare disorder where my right hand is in constant spasm. All of it was diagnosed after I just graduated and has started to fly. After I met her I was really happy as I had never thought someone would accept me like that, but she did and now she is doing this with me. I feel like a waste and thinking of ending my life once and for all.