If someone is happy and content being single why take the risk of getting married and risking their life turning to h*ll possibly?
Make sure that it won’t. If that means prenups, long term dating, etc. then go for it. It is reasonable to be concerned about a potential spouse, but there is a Mitzva to be done.
On the other hand, if you are on the level of Ben Azzai and getting married will affect your learning, and you control your yetzer, please disregard and continue learning.