So, I have a specific css code for my badge message notification that is not being updated when I mess with it. The rest of my css, form styles.css are working. When I edit them
You're going to kick yourself...
You are missing quotes around the first text-danger class and you have two class attributes:
<a class="text-danger notification" href="{% url 'dating_app:conversations' user.id %}" type="text/css">
<span>Inbox</span>
<span class="badge">{% unread_messages request.user %}</span>
</a>