I think the idea that you meet the "right" person and miraculously you fight through any obstacles to be together is a bit misleading.
I think once you make the choice you really love someone and then want to be with someone that yes you might fight obstacles to be together.
That said, I think love is made up of chemistry plus commitment and while the chemistry can appear any time or place, the commitment is always a choice.
So yes - you can meet the right person at the wrong time. Someone who you might have had a wonderful relationship with under differing circumstances or times in your life.
To try and give a few examples.
Say you meet someone just as you're going through a divorce. You might feel a lot of chemistry and have a heap of potentially but you're not fully emotionally available to make a commitment to them and do the work required to build a relationship.
Say for another example you decide you want to go off travelling and experiencing life and you meet someone right before you go.
Say for another example that you meet someone that you have a mad, crazy, passionate affair but at the time in your life that you et them you're not looking for a relationship; so instead of working on ways to get closer you might deliberately keep your distance and not grow things.
It is half luck, half work.
Sometimes the luck is there, but the timing is just wrong for the work.
I have, yes, met someone once that I feel for sure I would have been with if the timing and circumstances were different and no - I don't think that was because we loved each other less.
Just because it was not the right space in time.