Bond With Their Owner
Chihuahuas are very loyal dogs and form strong bonds with their owners.
Cuddling is a way for them to express their love and affection for you physically.
It also strengthens the bond between you and your Chihuahua, making it even more vital.

To Be Warm 
Chihuahuas are originally from Mexico and are used to warm climates.

Cuddling with their owner or another dog helps them retain their body heat and stay warm.
This is especially important in colder climates where the weather can quickly deteriorate a Chihuahua’s health.
It is a good idea to get your Chihuahua a snuggle dog bed to be cozy and warm when you’re not available to cuddle.To Feel Secure and Safe
Chihuahuas, like all dogs, have an instinct to seek out a pack leader.
In the wild, this would be the alpha dog.
In your home, your Chihuahua sees you as the pack leader.
They feel secure and safe when they cuddle with you, knowing their pack leader is close by.
This is especially important when there are unfamiliar people or animals around.Cheer Up Their Owner
Chihuahuas are very intuitive dogs and can sense when their owner is sad or down.
Cuddling is one of the ways they try to cheer up their owner.
This is one of the reasons why Chihuahuas make such great therapy dogs.
Their natural ability to sense and respond to human emotions makes them perfect for cheering up anyone who needs it.

To Smell Your Scent  
Dogs have a fantastic sense of smell due to their 300 million olfactory receptors inside their nose.

They can smell things that we would never even think to try and smell.
One of the things they love to smell is their owner’s scent which can activate the pleasure center of their brain.
Cuddling is an excellent way for your Chihuahua to get a good sniff of you and your unique scent.
This helps them to recognize and remember you, even when you’re not around.To Show, You’re Their Favorite Person
Chihuahuas are loyal dogs and usually pick one person to be their favorite. If you’ve been with your Chihuahua for a long time, you’re likely the person they’ll gravitate to.
This is because they’ve spent the most time with you and have formed a strong bond.
They may also choose a person because of their personality.
For example, if you’re always gentle and loving toward your Chihuahua, they’ll likely see you as their favorite person.
Cuddling is a great way for your Chihuahua to show you that you’re their favorite person.
It’s also a way for them to express how much they love and appreciate you.To Protect You
Chihuahuas are small dogs, but they have big hearts.
They’re fiercely loyal to their owners and will do anything to protect them.
Cuddling is one of the ways they show their protective instinct.
When cuddling with you, they instinctively try to keep you safe and sound.
This is especially true if there are unfamiliar people or animals around.
Chihuahuas are known for being great watchdogs and will bark to alert you of any potential danger.

Natural Instinct
Just like any other animal, Chihuahuas have an instinct to cuddle.
They’re born with the need to be close to their mother and littermates for milk and warmth.
As they grow older, this instinct remains, and they continue seeking physical contact with their owner to fulfill their natural instinct.
So these are some of the reasons why your Chihuahua loves to cuddle.