I managed to get this fixed.
You will have to go to ‘edit plugins’ in the plugins section of WordPress , open the testimonials-pro plugin page.
in the section where you see the following code :
$TP_name = trim($TP_data->TP_name);
$TP_desc = trim($TP_data->TP_desc);
enter the following immediately after:
$TP_desc = stripslashes($TP_desc);
this will strip the slashes from the actual testimonial string.