This is from google;
Breadcrumbing is a manipulative behavior where someone gives just enough attention to keep another person interested, even though they have no intention of committing. It can happen in any relationship, but is most common in romantic contexts
Breadcrumbing can be deliberate or unintentional, and can have long-term negative effects on emotional health. Some reasons why someone might breadcrumb include:
Seeking attention
Insecurity
Desire for power or dominance
Fear of rejection
Worrying about how they come across to others
Not knowing what they want
Some signs of breadcrumbing include:
Sporadic interactions, such as occasional messages or brief phone calls
Interactions that suggest interest, but there is no intention to follow through
A message that indicates interest, but there are no plans or continued discussion
To respond to breadcrumbing, you can:
Set boundaries and stick to them
Communicate your wants, needs, and feelings clearly
Recognize the pattern and call people on it
Get out of the relationship if necessary
Detach from the person emotionally
You can also try not to take it personally. People who breadcrumb do it to boost their own ego, and it doesn't mean there is something wrong with you.