Please help, I need a friend....

Sally
I need some advice as a few things are really getting me down. Basically trust issues and money.
Firstly trust, my last relationship where I was engaged ended suddenly after 6 years after he left me for someone else, he was violent towards me and left me a shell of a person.
I've moved on and have a new partner, who I love. To be with him I have made a few sacrifices, moved away from home, friends and even left and started a new job. He always said he wouldn't hurt me and our r'ship is nothing like he's ever been in before, even his friends said he's never settled down like this. However he ha a thing about lying, silly little lies and it has made me paranoid as any woman would, not to mention I have caught him messaging other females aswell, this has knocked my trust to say the least. But I chose to move on from it and try to work past it all.
We have money worries, since I made the move I have Got myself into debt and even though we both work it always seems like we are struggling and this causes arguments.
So my problem is I feel down, very down. I've also lost my friends as all they do is bitch about each other, don't have anything positive to say about anything I do, I can rely on them to be there when you need them. 
I feel like I'm stuck in a hole where we no longer do anything apart, and I'm terrified he will stray agin if we do. Feel like I've lost melt self again....please help.