I need advice.

So me and my boyfriend had been together almost 4 years. We broke up at the end of November and 3 weeks later we started seeing/speaking to each other again. We agreed to take it slow and try to build a friendship and work on our relationship and see what happens. For around 3 years of our relationship we lived together at my mums house with my mum and my younger sisters which we now realise had put a strain on our relationship. He has moved back home and I go round a couple times a week and have been socialising with his family again. I have also recently met one of his work friends who I had never met any of them when we were together. All is going well however I feel like when we are not together and we are texting he is very blunt and doesnt seem to make conversation. He is the love of my life and he has told me that I am his but I am so scared to lose him again. I dont know whether I am thinking into things because we are not officially back together but the past 2 days he has been ignoring my texts a few times but has been online on all other social media and I want to know why. If I have done something wrong however I dont want to seem like I am invading his space and nagging. Advice anyone??????