Lost interest or what lol

Met a guy off an app we been chatting for several days at first it was fun and interactive

Now all says is

Nice

Lol

Ok

Ight

Just one word replies

So I asked if things are ok he said he’s OLD SCHOOL I’m thinking you’re 5 years older than me lol I’m 36 you’re 41 he prefers to chat for hours on the phone

I hate talking on the phone

So I haven’t said much to him today after getting mainly 1 word replies

Based off experiences this usually means a man is no longer interested lol

He doesn’t even reach out much anymore either except to say: shower or I’m clean or dinner time

Nothing to initiate conversation

I tried to initiate a conversation I got dry replies

Is he not interested no more or is he truly just old school?

Just asking not cos you guys would know just wanna know what you’re guy’s thoughts are