There's this guy I've been talking to we aren't a thing but we talk daily and he confessed that he is interested in me but I'm not ready for any relationship so I turned him down. We still talk everyday and I'm slowly trying to open my heart for him but then I'm starting to lose interest lately. He always likes to pull a text prank on me and he only tells me he's joking after I have gone mad...this has happened a lot and I've told him we should argue less even if he thinks it's a joke....am I exaggerating it or is his behaviour really a problem?