It is so serious I have knew a guy incidentally through work and we exchanged numbers for other businesses. After few days he talked to me telegram and we started talking normal. He asked me for a date and we meet up. It went alright. We started to get closer and he asked me for another date but I was so busy to meet him. We still talked but later he started to get slow. I couldn't understand what's wrong. He don't talk messages nor calls. I called once and he said he was busy and he didn't call after. What shall I do? I have feelings towards him and I don't want to lose him but it's so hard to show care from one side. Give me advices