So recently I've become comfortable approaching girls and striking up huge conversations that last quite long. So the last girl I spoke to was chatting with me for up to an hour and this was after her run when she was exhausted. Now the problem with my approach is when I try to contact the girl after through whatsapp or when I give them my number there is no response. Things are going so well when we're chatting in real and it feels like we're both in flow but, when it comes to texting I'm being ghosted way too often for my comfort. Any advice on where I'm going wrong or how I can improve?