But the goal isn't to make your new love feel rejected! It's important to be mindful of how you're broaching such a delicate topic. Instead of making the conversation about you (which it is, but whatever), make it about the TWO of you.
Say you think the best relationships are forged from two independent people with their own lives in addition to the life they share. Make it clear that you see this going somewhere serious; and the last thing you want to do is screw it up before it has a chance to mature.
See, doesn't that sound docile? We like docile in these situations.
Needing time for yourself doesn't mean you don't like the person you're dating
Last but not least, let's talk about guilt. It's the thing that stops us from having these critical conversations, and forces us to wallow in a shameful puddle of sadness and suffocation.
Wanting space does NOT mean you don't like this person! There is nothing to feel guilty about here. This is you, making it work with someone you really like.
Having your own life doesn't mean you're not relationship material. Quite the contrary! Being self-sufficient gives you the stability a healthy relationship requires.