Swipe position problem

My character moving always to the right everytime i swipe and i have no idea why

using UnityEngine; using System.Collections;

public class Swipe : MonoBehaviour {

 public float maxTime;
 public float minSwipeDist;
   


 float startTime;
 float endTime;
 float swipeDistance;
 float swipeTime;

 Vector3 startPos;
 Vector3 endPos;
 private Rigidbody _rigidBody;


 //axel crap
 public float speed = 3f;

 void Start()
 {
     _rigidBody = GetComponent<Rigidbody>();
     _rigidBody.AddForce(Vector3.right * 200);
 }


 void Update()
 {


     if (Input.touchCount > 0)
     {
        

         Touch touch = Input.GetTouch(0);

         if (touch.phase == TouchPhase.Began)
         {
             startTime = Time.time;
             startPos = touch.position;
         }

         else if (touch.phase == TouchPhase.Ended)
         {
             endTime = Time.time;
             endPos = touch.position;

             swipeDistance = (endPos - startPos).magnitude;
             swipeTime = endTime - startTime;

             if (swipeTime < maxTime && swipeDistance > minSwipeDist)
             {

                swipe();

            }
         }
     }
 }

 void swipe()
 {

     Vector2 distance = endPos - startPos;
     if (Mathf.Abs(distance.x) > Mathf.Abs(distance.y))
     {
         Debug.Log("Horizontal Swipe");
         _rigidBody.AddForce(Vector3.right * 200);

     }

     else if (Mathf.Abs(distance.y) < Mathf.Abs(distance.y))
     {
        Debug.Log("Vertical Swipe");
        _rigidBody.AddForce(Vector3.left * 200);
     }

     transform.position = Vector3.Lerp(transform.position, endPos, speed * Time.deltaTime);

 }

}