Baecation

So my boyfriend is going on vacation in may and I discussed with him if I should take my vacation the same time as him. He said yeah we can go visit Colorado but now he’s changed his mind and doesn’t want to go anywhere with me and he wants to do his own thing. We’ve been together almost 3 years and we live together so I kinda understand he wants his own vacation but I want us to travel together before we really settle down. Would anyone else be sad/upset about this?