So lost

Roughly 2 months ago now my fiance told me he hasn't been happy lately and he doesn't know why. He said he doesn't know if it's because of work, or where we live (I know he hasn't been happy with our townhouse), or what the reason is. I asked if it was because of having a mundane routine and he said no. He said our son is his excitement. I asked him if it was me and he said "I don't know, it could be". Now every day I wake up and wonder if it will be our last. I wonder if he's only with me and unhappy for the kid. I wonder if one day he's going to wake up and realize he wants to break up and that I'd be a single, close to 40 "divorced" mother of a toddler that no one would want. I probably wouldn't want to find love again if that happened 😔😔 even him questioning if he's still happy with me has made me feel so unstable and not sure what to do with myself. I can't force, nor would I want to, someone to be with me if they aren't happy, but I don't want to loose him.

I do plan on seeing where things are at and talking to him about this but I don't want to push it too hard and too fast, give him time.

I just feel so stuck and so lost in this limbo I'm in 😭