Your friend has turned off his read receipts ?
You don’t know whether you are being ignored or they haven’t seen your text ?
Well there is Fix for it 🙂
Whenever you text anyone whose read receipts is turned off, just send a voice message of 1 second along with your other messages . Whenever they’ll see your texts you will be able to see blue ticks beside your voice message.
Happy Texting 🙂