Serial non-committed dating
You love the idea of what a committed relationship can provide: friendship, comfort, shared history, shared beds, frequent communication and some level of partnership. BUT, you're not quite ready (or entirely in to) the accountability, exclusivity and pressure that a formal commitment comes with.
Unlike someone who is into casual dating - you do want your partner's to rely on you and vice versa to some extent, but not in the full way that you perceive a formal relationship would. You're not actively searching for new partners, but you enjoy the idea that you can engage at will without having to consult with anyone else.
In short you're looking for a medium-level of commitment without a high-level of accountability with a preference for mid-term partners. For you to exist in your sweet spot, managing expectations is going to be essential. And not just in the beginning of the connection when you say "I'm not looking for anything too serious right now," but all the way through. You're giving people the relationship experience without wanting the title, which is awesome because you do prioritize your relationships in many meaningful ways, but not necessarily in the traditional ways. This can be confusing for some so be open to having the relationship status chat frequently.