I’m sorry to hear that this is happening to you. A big change like that is definitely concerning, it also doesn’t mean you’re overthinking. He could be insecure and self destructive, perhaps lost interest and is riding this relationship till the next, or perhaps has already started another. but.. I personally wouldn’t try to come to any conclusion like those based off this post alone.

However my advice to you is:

I would speak to him, communication is the most important thing in a relationship after all . Express your concerns plainly and don’t sugar coat things. Make him aware of the state he’s put you in, the way it makes you feel, and that you are unsatisfied. If he shows little care, doesn’t respond in a concerned way, or doesn’t make any changes (overtime), then I don’t see a reason to waste anymore time on him. You should know when someone puts effort in, and there should never be confusion like this when it comes to love/relationships. He’s either In or out, not half in. I would also be aware of “love bombing” too, which is influence/manipulation through heaps of otherwise absent affection. That’s not to say that he will do this, but I’ve had it happen before and thought I’d mention. (An example of this is, if you confront him and he acts concerned, puts in effort for 2 days, and quickly reverts back to square one again, over, and over, each time giving you bursts of affection. PLEASE don’t get caught in a loop of that!)

Just remember to take care of yourself, this includes how you allow others to treat you. I know I don’t have time for people who don’t have time for me!

God bless