The 24/7 part is a good point but I feel like with the pandemic, i can safely say there are people I'd never get tired of talking to and never ran out of things to discuss.
It's the 24/7 thing paired with the fact that she legitimately doesn't have any real interests. She doesn't care about anything other than buying/receiving crap. It's hard to talk for hours about that.
If she liked movies, music, politics and foreign affairs, books, art, anything really, she'd have conversation topics at the ready, even if she does spend inordinate amounts of time with Alfie. But nah.