Torn in between the two...

Sasha
I'm dating this nice guy, a total gentleman. He cares about me & have confessed his love for me. I've said I loved him back but it's like I have to force myself to say it. 
My ex who is also my kids father wants to make back up, but I don't trust him at all. I am though very much still in love with him.
I don't know if I'm still in love with the fact that we built our future and to be with my ex is more stable.
The guy I'm presently dating is a bit younger than me but he isn't stable because he was conned in his past relationship.
So I'm afraid to commit to an unstable relationship although the guy is a gem! But I also don't want to go back to my cheating ex! But we've acted on our dreams and made some of them come to reality. 
I'm so torn cause right now it's choose love or choose stability...