How to reply to this or I should leave it?

How to reply to this or I should leave it?
Red text is me/black is him (online friend) context : we used to talk daily, he used to he so kind with me I don't know why he suddenly stopped texting Goodmorning texts, he started to reply very slow , he helped me when i was lonely and had family problems so he became a part of my day, i enjoyed his company even if its online, but what hid did really affected my mental health, im an overthinker, when he is online of different apps and reply after hours i started to overthink and become sad, i think he lost interest, i can't do this anymore, i did not reply since yesterday and its kinda affecting me, i hate to ignore people and hate to get ignored too:(
How to reply to this or I should leave it?
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Edit : i asked how to reply to this not lessons on how mature or immature i am
How to reply to this or I should leave it?
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