FINALLY I TRACKED DOWN THE ISSUE,
So here is the solution, the problem was the margin_Right of the m_oItem_TextViewBottom which was caused by:
android:layout_alignRight="@+id/m_oItem_TextView_TopRight"
thus it effectivly created a margin right which was the troublemaker, I tested this with other textviews and right margins and they all had the same issue.
I replaced it with a Padding of the same margin and ended up with this as my final solution for the item.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
style="@style/ButtonItem">
<TextView
android:id="@+id/m_oItem_TextView_TopLeft"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_marginLeft="20dp"
android:layout_alignParentTop="true"
android:layout_marginTop="10dp"
android:textColor="@color/black"
android:textSize="@dimen/font_size_12" />
<TextView
android:id="@+id/m_oItem_TextView_TopMiddle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/m_oItem_TextView_TopLeft"
android:layout_toRightOf="@+id/m_oItem_TextView_TopLeft"
android:layout_toLeftOf="@+id/m_oItem_TextView_TopRight"
android:layout_marginRight="20dp"
android:textColor="@color/black"
android:textSize="@dimen/font_size_12"
android:gravity="right"/>
<TextView
android:id="@+id/m_oItem_TextView_TopRight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:paddingRight="40dp"
android:layout_alignTop="@+id/m_oItem_TextView_TopLeft"
android:textColor="@color/black"
android:textSize="@dimen/font_size_12"/>
<TextView
android:id="@+id/m_oItem_TextView_Bottom"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/m_oItem_TextView_TopLeft"
android:layout_below="@+id/m_oItem_TextView_TopLeft"
android:layout_marginTop="5dp"
android:paddingRight="40dp"
android:textColor="@color/black"
android:textStyle="bold" />
<ImageView
android:id="@+id/m_oItem_PlaceHolder"
android:layout_width="wrap_content"
android:layout_height="10dp"
android:layout_alignLeft="@+id/m_oItem_TextView_TopLeft"
android:layout_alignRight="@+id/m_oItem_TextView_TopRight"
android:layout_below="@+id/m_oItem_TextView_Bottom"
android:contentDescription="@string/image_description"/>
<ImageView
android:id="@+id/m_oPart_Arrow_Image"
android:scaleType="fitCenter"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_marginRight="5dp"
android:src="@drawable/arrow_right"
android:contentDescription="@string/image_description"/>
</RelativeLayout>