The concept of minimum interest and just exactly what this means for the relationship.
Not long ago I encountered a relationship situation that brought in your thoughts the concept of interest that is least and what it telegraphs about relationships where one partner is a lot more interested compared to the other. It’s a theory that is old originating with a sociologist known as Waller. He noted that after one relationship partner is more emotionally invested in the partnership compared to other, the less partner that is involved more energy into the relationship.
Definitely, often a relationship begins with one partner being keen on the connection compared to the other (at the start, partners usually move at various paces within their involvement that is emotional with another). More problematic is the fact that situation where someone is truly not totally all that enthusiastic about a relationship that is romantic the other (or has lost interest), and deep down does know this is not likely to improve.