"I've never been in a relationship"
Sounds like the one who wrote this, badly need someone with whom he won't need to stay pretentious. Never to look back after any action performed, for the sake of maintaining pseudo-standards.
Have you ever heard of butterfly effect??
It's something which surely resembles the state of mind for a guy/girl being in a relationship., According to this, every small variations in the initial conditions of any process generates major changes in the outcomes of the latter half!!
Let the committed part of a relationship be the latter half and the initial efforts made by the guy or a girl be the initial conditions,
Now tryna fit this scenario in the above passage.
Whatever flashes before your eyes is the answer for the worldwide crisis that why marriages and relationships ultimately leads to a boredom!!