What does it mean when a man says 'just A LOT going on right now which I guess is a good thing'

Anonymous
I am 46 and the guy I am interested in is 49; we emailed each other about 4 times; he seemed interested, said I was attractive, asked me to send him more photos and asked me 'whats your story' and I responded being friendly and flirty, told him he looks very handsome and if he was single? I didn't receive a reply for almost 2 weeks so I asked him 'how is his health, is he in the hospital and I hadn't heard from him so I was worried' and he responded saying 'hey yeah I am feeling better, thanks for asking; just A LOT going on right now which I guess is a good thing'; What does this mean?
Updates
+1 y
I do have a guy friend who makes time for me to chat once a week but he's married so I am not interested.
What does it mean when a man says 'just A LOT going on right now which I guess is a good thing'
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