Feeling really hurt :(

Ok so I got my bfp 18/06/14 and haven't been happier. I had a few words with my partner that I think he shouts at my son to much and he let rip. Saying he's had to bite his tongue with me for the past few weeks, that I'm really difficult to live with and said he might as well pack his bags and leave. This came as total shock, I've never had a argument with him before and he's never shouted at me or talked to me like this. He seemed so angry and sounded like he really couldn't care about me, i didn't recognise him. Now I just feel maybe he just doesn't tell me how he really feels and now it's all coming out. I know I've been more moody but not to this point. Things just feel awkward he's so off with me and I am very sensitive and can't forget the things he said and does he really want to leave and keep crying.