How to Show Items in group on cart page in Shopify

{% for item in cart.items %}

{% if item.fulfillment_service == 'manual' %}

  {% if item.product.tags contains 'DGA' %}

{% unless groupnames contains 'partner1' %}

  {% assign groupcount = groupcount | plus:1 %}

  {% assign groupnames = groupnames | append: 'partner1' | append: ',' %}

{% endunless %}

  {% else %}

{% unless groupnames contains 'bevilles' %}

  {% assign groupcount = groupcount | plus:1 %}

  {% assign groupnames = groupnames | append: 'bevilles' | append: ',' %}

{% endunless %}

  {% endif %}

{% else %}

  {% unless groupnames contains item.fulfillment_service %}

{% assign groupcount = groupcount | plus:1 %}

{% assign groupnames = groupnames | append: item.fulfillment_service | append: ',' %}

  {% endunless %}

{% endif %}

{% endfor %}

{% assign groupnames = groupnames | split:',' %}

{% for groupname in groupnames %}

<h3 style="color: #d1619c;">DELIVERY {{ forloop.index }} OF {{ groupcount }}</h3>

<div style="color: #ccc;">{% if groupname == 'bevilles' %}Delivered by Bevilles{% else %}Delivered separately by our partner{% endif %}</div>

{% for item in cart.items %}

{% assign group = '' %}

{% if item.fulfillment_service == 'manual' %}

  {% if item.product.tags contains 'DGA' %}

{% assign group = 'partner1' %}

  {% else %}

{% assign group = 'bevilles' %}

  {% endif %}

{% else %}

   {% assign group = item.fulfillment_service %}

{% endif %}

{% if group == groupname %}

// Items showing here

{% endif %}

{% endfor %}

{% endfor %}