Respectfully, rushed marriages are not good and being in love is not a sufficient motivation. There’s a whole lot of problems that spending some time as friends or engaged couple (or something in between) could prevent. There’s a whole lot of issues that a short romance won’t unveil but a 1-2 years long one will, such as say, NPD, pathological lying, paranoia, various degrees of psychopathy, OCD, bizarre living habits, strange religious or spiritual beliefs, life-complicating results of past history… There’s no way to weed it all out in 3 months of dating, not sure about 9. It’s even worse when someone’s actively trying to conceal negative traits. Naturally, most of these bad decisions would’ve been avoided by not ignoring red flags early on, but people who are in love don’t react the same way and will be reluctant to “dump” the other one, say, for a single lie or for a bit of selfishness. They will suffer for some time unil they have had enough or seen enough.