Feeling strange n stressed

My boyfriend isn't talking to me much nowadays.He texts me once in two days.I understand he must be running busy or so but he isn't that attached to me I feel.I feel strange the way he's behaving.I tried talking to him but he dint say anything.He talks to me once in two days and that to before sleeping for 5mins text where he mentions he is sleepy,bored or tired. how can I change this situation,I feel really stressed in all this.Talking to him is also not working what should i do?? 😢