Problem with tooltip

[NotroDev]

Hi.
I have this function:

private string GetWordAtMousePosition(MouseEventArgs e)
{
    var mousePosition = GetTextEditor().GetPositionFromPoint(e.GetPosition(GetTextEditor()));

    if (mousePosition == null)
        return string.Empty;

    var line = mousePosition.Value.Line;
    var column = mousePosition.Value.Column;
    var offset = GetTextEditor().Document.GetOffset(line, column);

    if (offset >= GetTextEditor().Document.TextLength)
        offset--;

    int offsetStart = TextUtilities.GetNextCaretPosition(GetTextEditor().Document, offset, LogicalDirection.Backward, CaretPositioningMode.WordBorderOrSymbol);
    int offsetEnd = TextUtilities.GetNextCaretPosition(GetTextEditor().Document, offset, LogicalDirection.Forward, CaretPositioningMode.WordBorderOrSymbol);

    if (offsetEnd == -1 || offsetStart == -1)
        return string.Empty;

    var currentChar = GetTextEditor().Document.GetText(offset, 1);

    if (string.IsNullOrWhiteSpace(currentChar))
        return string.Empty;

    return GetTextEditor().Document.GetText(offsetStart, offsetEnd - offsetStart);
}

And this event:

void TextEditorMouseHover(object sender, MouseEventArgs e)
{
    string word = GetWordAtMousePosition(e);
            
    toolTip.PlacementTarget = sender as UIElement;
    toolTip.Content = word;
    toolTip.IsOpen = true;
    e.Handled = true;
}

But, it works like this:



How can i make it to give me everytime "{test}"?