Why this time he's no longer talking about his feelings?

We've been together for 7 years on and off, we always come back together like there's always reason to come back, even though in the past we have dates other people and me got engaged in the pats but broke up and we got back together again.. so after 5 months we separated he finally reached out to me sending a screenshot like a proof about something that he actually never forgets about me.. we talked a lot but now he's no longer want to open up about his feelings.. we will meet again next month.. he said he can't wait to meet me.. sometimes he told me like "take care of your health don't be too tired" or "did you go out for the coffee with a lot of guys?😏" Like I don't know what does it mean.. so guys maybe you can help me
Why this time he's no longer talking about his feelings?
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