This will probably divide those who think...
A) messages are to be replied at your own leisure and it's out of order to be a recipient and expect a response sooner
B) if a friend you genuinely like and respect messages, you should find a few minutes in your week to respond if only to say you're busy and will get back to them another day.
Essentially I have a close group of friends that's I've known for 35 years. The group has changed over time but we've always kept certain events free for each other. We always have a few days away in the summer with our families, we always have a Christmas meal at someone's house etc. Throughout the year we also see each other for more spontaneous meet ups in different sizes and combinations. It's a male and female group, some are married couples with others in the group.
Four of us women are close and we have a WhatsApp group, check in regularly with work and life chat, it's nice. Everyone is pretty responsive to messages. We also all message each other individually. One friend though, hardly very responds to my individual messages to her. They are often direct questions, not vague chatter. This week it's an invitation to go somewhere. She'll usually leave it around 2 weeks, message with sorry sorry been busy etc and I'll say don't worry blah blah blah and then the same happens the following time. All the while, group messages are sent.
So I am confused, is she phasing me out? I imagine if I asked her directly she'd dismiss such a suggestion but it's hard not to take it personally. Shall I stop messaging her? That also then seems like I don't value her friendship when I do.
Help!