This is the ideal ex relationship. I have one that's similar. The intimidating ones are the ones that have a lot of back and forths over several years and they're still basically watching each other on all manner of social media, most of their friends are tight in with this person, they follow social media for their place of work and most of the circles and hobbies they have in common, lots of intersection. If they can't go a few weeks without seeing or mentioning their ex, there are too many people in the current relationship.