What have i done wrong ?

Hi. I am 25M recently gone through a breakup with a partner who is 2 years elder to me. She broke up with me randomly on a saturday evening - 21st dec.

So the series of events that has turned up is this. 19th dec - she had to attend some office party of hers and we were all speaking all lovey dovey and eveything was all right between us. 20 - we couldnt speak because she was busy with office . Yes we were in long distance. 21 - we couldnt speak because i was busy and when i got free to speak to her i was told that she doesnt wanna be with me anymore and that i dont call her enough.

Now immediately after a small heated argument i get blocked in whatsapp only. The following couple of days everyday i was told one or the other reason. Saying that i dont care for her enough. I dont love her enough. I deserve to be blocked because i have done nothing for her. One day i get told that she wants to get married by 2026. Because she would be 28 by then. One day she tells that she wanna have kids by 2028 due to her age and health. Which i respect and i am not disrespecting that decision.

Now i know what all you might think that its her decision and everything which i still agree. And respect it but dont i also deserve a clarity that what has happened. We both have spent 1.5 years in a relationship. Now i am not that fuckboy walla attitude king of guy. For me 1.5 years is also some time spent if not considered a long time spent with a person. And i do think that i have put more efforts at times when it was needed than she has but everytime it has been the case that she has bought things she didnt like that i have done and made a huge fuss about it. I get it shes still hurt by my previous actions but if she is wouldnt it be better she communicates it with me. Rather than fighting with me at a different context wala arguments.

After constantly calling her for reasons. She tells me that she has slept with a guy. Which i am sure she is saying to me to despise me. And admist all this while she broke up with me. She went for a roadtrip on newyears eve. I mean yaar itna cold hearted hote ho kya kabhi kabhi ?

I know not everyone is perfect. I know even she isnt perfect and more i know i aint perfect at all. The words she uses against me when shes angry are beyond my mind that one can even say those kind of things to your loved ones. just because tumko FOMO hora hai ki mere baaki doston ki shaadi hori hai toh mereko bhi karna hai. I would like to think ki yaar thats not how u select a life partner right? ( yes she insinuated this also as a reason once ).

I know you would get a one sided perspective from this reddit and one shouldnt judge the context without hearing both sides. But what do u think ?

I feel so lonely and depressed right now mainly because i have zero friends and she was basically the only person i use to have some social connect with and rant to. All my clg frnds are busy in their own life. No school frnds as such. I am so depressed right now as the last call in my call logs are of some workers working in my construction site which was of 3 days ago. I dont know when did i open my whatsapp last.