On the way home, nearly there and came across an argument between a couple. I was ready to phone the police when I saw the bloke pick up the women, but she struggled until he let her go. Anyway, I asked her if she was okay, gave her a listening ear and a shoulder to cry on and stayed with her until I was sure she was safe. The bloke in question is her husband and she's in the process of leaving him, but is scared he's going to take their little one back to Romania if she does. I gave her my number and said if she needs anything to call me. I don't know what else I could have done, but I'm glad I didn't ignore it, (which I was going to.) I do feel shaken up, but I'm sure that's nothing to what she's going through. 
(And before anyone asks, I still have all my stuff, something I didn't even think about till I got home and my husband said.)