Among all the negativity, I must say that I like the line "I must admit I'm an idiot, even I didn't think this would happen"
I think many highschool sweethearts couples, even moreso ones with stories like these, end up letting go on doing the constant effort that relationships require because "we're meant to be"(which is really just the reverse of "who else would you be with?", if you look at it cynically)
It's... awful to see that Mitsuk4i only gains conciousness of the problems in the relationships once a potential rival comes along, but it's also natural, it happens.
Personally, it really speaks to me, I've been on both ends. And nowadays I quite hate the assumption that you'll be with someone forever because it causes these issues, so I quite liked this episode.
I agree, I really loved this line and it unfortunately resonates with me a lot. Although, in some part of my mind deep down, I thought it could happen, until I was faced with it straight on, I didn't actually think a break up would happen between me and my ex (first love).
It's a very common thing that happens in first/young relationships. We grow up in a very romanticized culture with our media often depicting "destined' and "forever" relationships, that we fail to realize in our innocence or rather naivety of first relationships, just how damaging that mindset could be.
Both in either, believing the person will always be there no matter what, even when you're not putting in as much effort as you once used to and thus taking them for granted or someone staying for much longer than they should, even though they aren't being treated well, but believe this is supposed to be "destined and forever" so they shouldn't let go of the other person, because as you said perfectly, "who else would you be with?"
