Boyfriend might want to break eventually

Hi! Me (f, 23) and my boyfriend (m, 23) have been in a relationship for 2 ½ years and we’ve been best friends before that for some time.
We were in the same friendsgroup and liked to travel before we came together.
We’ve now been in this relationship, of cause with it’s ups and downs but everything ok.
But due to my move in September I asked him about our future, I asked what his plans are and if he involves me in his planning, because I don’t want to involve him in the move (where I go), if he doesn’t consider this relationship as lasting (of course, something can happen – always. I just wanted stability because I don’t want to spend years on a relationship if he steps back after such a long time)
As a background info: we talked about this here and there.. e. g. planned a trip to the Usa together (we’ve been in the Us 1 ½ years ago), roadtripping for months and all.

But he is a really bad talker and I always need to push him to talk to me about such topics.

Now he opened up about maybe wanting to travel alone too sometime and I asked if that means he would break up. He said maybe, depends on the duration of the travel and so on..
Now, I always told him this relationship would eather be a forever or my biggest heartbreak.. so with his words he kind of broke up with me.
I always said I’m not in a relationship to date but to simply be with him. I want a partner, not a boyfriend. Also, I have always agreed if he ever wants to go on a trip alone or whatever, I just really didn’t think he would break up with me for traveling.

I can’t wrap my head around him loving me but saying that.
What do you think about it? Could use some advice.

*TL; DR; * : In Short, my boyfriend might want to break eventually for solo travelling and I want a forever-relationship. Should I break up to prevent heartache in a few years or hold onto it as long as I can to have a good time?