I swear this person is just screwing with me

Posted a listing for cryptid on amvgg. someone counter offered wanted swaps, I did, they wanted swaps, I did, this goes on for 30 minutes, they finally accept, we get in game, second trade , declines. I realise it’s a win for them on amvgg but a lose on elve, I say ok, understandable, they make a counter offer again, same thing but for over an HOUR going back and forth, now making me a overpay by 11, FINALLY accept, I go to add them, they taking a second to add me back, look back on amvgg, they somehow refunded the accept and now it’s my counter offer again that they accepted HELP I WANNA GO TO SLEEP and want the damn cryptid I’m gonna strangle someone 😭😭😭

I’ve been looking NON stop making offers on like 50 listings and I have a pretty good offer I think and this is the only person who’s seemed willing but I don’t even know if they are willing or just trying to frustrate me ?????