Do you think he is done with me?

My boyfriend of 9 months is acting different lately. He would always be really affectionate and hold me every night we go to bed. For almost 2 weeks now he is hardly home and stays out all night and I don’t see him till the next day. He tells me he loves me all the time but the days he has been home he has given me rare attention. When we lay in the bed recently on the nights he is home he turns the other way and goes to sleep. I don’t know what to do anymore because our love use to be so strong and always connected and cuddled and kissed all the time when he was here. Now it is not the same anymore. He seems depressed about something and I don’t know how to tell or talk about it to him and figure why we are not close like we use to be. We get along when he is here and call each other baby and honey and he calls me wifey but it just feels like he is distant from me within the last 2 weeks. He has cheated on me quite a bit. I believe he has sex with other woman but no emotional connection with any of them. I also think he is addicted to ecstasy and that is why he is acting like this. How do I sit and talk with him about our relationship without it escalating to an argument because he can be abusive sometimes? I just want him to be honest with me and tell me if he is still in love with me or not. I am a very strong woman and I act like nothing is wrong towards him and have not argued with him recently about not coming home I am trying to do everything in my will just to be laid back and act like I trust him and things will get better but it is not.