What does “3” acronym in a text?

What does

It’s very likely that you’ve heard the <3 Acronym or hashtag used in a social media app such as Instagram or on a website like Facebook, Twitter, Youtube, Tumblr, etc.

Acronym or hashtag used:
<3 is “Love (heart shape)”.
<3 – Meaning “sideways heart” (love, friendship).
<3 – Meaning “broken heart”.
<3 - Meaning "sideways heart"
<33 or <3 <3 – Meaning “heart or love” (more 3s is a bigger heart).
<3 is also referred to, in my very small circle, as “buttcone”, but with intentional irony—the “heart” meaning is known. <3 is shaped like a heart and is used online to represent a heart or love. A person may type “love you”, and a person may respond “<3”.