A question from a hopeless romantic 24F. Relationships and marriage: what’s the real deal?

Is a relationship hard work, or should it make your life easier?

Should you keep going, trying to communicate and resolve the issues and arguments, or should it mostly feel like butterflies?

Is it draining but worth it, or should it end once it starts to feel draining? if we both change but it’s always like 2 steps forward 1 step back 1 step forward then 2 steps back, is this how it should be?

Is it two people from two different worlds learning to adapt together, or should we always be similar? Do the arguments ever stop? Do the conflicts ever become less?