If anyone looking for the same answer as me this is the section of the style where ad_message_below should be moved that worked for me:
<xen:hook name="message_content" params="{xen:array 'message={$message}'}">
<div class="messageContent">
<article>
<blockquote class="messageText SelectQuoteContainer ugc baseHtml{xen:if $message.isIgnored, ' ignored'}">
<xen:include template="ad_message_body" />
{xen:raw $message.messageHtml}
<div class="messageTextEndMarker"> </div>
</blockquote>
</article>
<xen:include template="ad_message_below" />
{xen:raw $messageContentAfterTemplate}
</div>
</xen:hook>