When Blending Families Feels Forced: Navigating Different Needs

I've been with my partner for several years now, and we each have older kids from previous relationships. Mine are 19 and 23, still living with me, while his are 17 and 20 and mostly with their mom. Our relationship is strong, and my kids really like him, but we all value our own space. He keeps suggesting we all take a vacation together, but honestly, none of our kids are interested—they have their own plans and barely connect when we do group outings. I feel like forcing a blended family trip would just make everyone uncomfortable. I love the idea of a getaway with just him, and separate time with my kids. Am I being unreasonable for wanting to keep things as they are? How do I explain this without hurting his feelings? Would love to hear your thoughts! #BlendedFamily #ParentingTeens #FamilyBoundaries #FamilyRelationships