Hi Alex,
He may have said that he was thinking about breaking up with his girlfriend, but in the end, he never did.
This means that he was most likely not entirely sure about breaking up with his girlfriend.
He may have had some doubts about his relationship with her.
However, since then, they may have been really getting along.
As a result, he may have decided to stay with her and not break up.
This happens quite often in relationships.
One party thinks that they want to break up with the other, only to discover that they have gotten comfortable with that person and would much rather stay with them.
Sometimes the idea of breaking up happens because of a disagreement or argument that occurred between both parties.
However, if they make up, staying together tends to be a lot more appealing than venturing out into the world and trying to find a new partner.
Hence why you have repeatedly seen this guy going out with his girlfriend in his Instagram stories.
As human beings, we tend to want to stick with what we are comfortable with and what we know.