Well i'll put my 2 cents.
Marriage forces 2 individuals to become a team ... partners... work together... beyond the ''love aspects'' (due to legal and financial constraint)... So Marriage puts alot more ''barriers and pressure' and vulnerabilities beyond matters of the heart' in maintaining that LTR
LTR are just based on love and requires all the same things as marriage to work... without the ''frame or constraint''
In both case, you need a complimentary and understanding partner who has a commitment to making it work (and you need that also)
People in Marriage and LTR do enjoy a stronger sense of well-being and power... because they have someone that contributes in their life or they ain't always looking the next plate.
Yes, nothing is perfect... but you are not alone in this imperfection
I'll likely will get married soon, before now I've never thought about it or cared really, not even seeing the point.. and still not 100% convinced. However, the girl I am picking seems to be right to build something, a common future
LTR and Marriage are like babies... a serious discussion and matter, you need to be there with the right person for the right reasons.
Why I would get married?
Cause the woman I marry is the one that will be having my kids
Pooling our ressources together for a common ground
She's in the right frame to balance me as a person
Cause she's asking for it