I'm sorry to hear that you're going through such a difficult situation. Friendships can be complex, and there could be various reasons why someone suddenly cuts you out of their life, even if you believe you haven't done anything wrong. Some possible reasons include:
Personal issues: Your friend might be dealing with personal problems, such as mental health issues, family difficulties, or other stressors, which could lead them to withdraw from social interactions.
Changes in priorities: People change over time, and their priorities can shift. It's possible that your friend has developed new interests or found themselves in different social circles.
Miscommunication or misunderstandings: There might be miscommunication or misunderstandings between you and your friend that led to the rift in your relationship.
Conflict avoidance: Your friend might be avoiding confrontation or uncomfortable conversations, leading them to distance themselves from you instead of addressing any issues.
External influences: Other people or circumstances in your friend's life could be influencing their decisions, making it challenging for them to maintain certain relationships.
Emotional burnout: Sometimes, people can experience emotional exhaustion in relationships, which may cause them to withdraw for their well-being.
It's important to recognize that these reasons are not a reflection of your worth as a person or the quality of the friendship you had. People go through changes and challenges in life, and it can be difficult to predict or understand their decisions fully.
While you mentioned you won't beg for reconciliation, it may be worth considering reaching out to your friend in a non-confrontational manner to express your feelings and inquire about their reasons for cutting off contact. Remember that their response, or lack thereof, is beyond your control, but at least you would have made an effort to communicate your feelings.
Regardless of the outcome, focus on taking care of yourself and surrounding yourself with other supportive friends and family. Coping with the loss of a significant friendship can be challenging, but with time, you will heal and grow stronger.