Bit of a backstory, have to interact with this person because in a shared group situation. At the beginning they were all fake friendly with me, but then starting making subtle underhand comments, and even sent me a nasty put down text one day, which I just ignored. Ever since then 'friend' has tried to make an effort to get me to stay communicating with them (which I don't know why because they clearly have taken a dislike to me) but I just generally stay stoic, say hi, small talk, and that's it.
Anyway, in a group WhatsApp, which I don't want to leave because I really like the friends in common, this person always feels the need to comment straight after I've commented about something to someone else. İt's so annoying. I write something in response to something, and I always know 'this person's going to jump on straight away now and put their two cents in and undermine me' and then within seconds, they do. İ don't want to give details because it's outing sorry! Trying to share the gist of the situation as best as I can. I thought I was imagining it but then I decided to stay quiet in the group for a while and so did they. The moment I decided to come back into the group, they jump in. And it's always with a comment saying the opposite of what I've just said, or repeating what I've just said and trying to make it sound like they know better. Or sometimes even questioning me and my knowledge or something. İ know they wouldn't dare do it to my face, they just try and compete with me in a different way in person. I'm not a competitive person unless it's in a fun sports way or something, we have completely different lives ans backgrounds anyway, and there's nothing to compete for, but its so annoying. İt's never happened to me before either, I just try and get on with people, if they don't like me they generally stay away. What's with all this fake friend nonsense!
I'm just ranting really. I know Mumsnet can't solve my problem for me or make it go away, I have to put on my big girls knickers and just be stoic about it. But, garhh sometimes it really bugs me.