still confused..but it's getting better

Long story short I am in a relationship now with a good man.  The type who has my best intentions at heart, which is to get back to my two girls in a town 45 min from here so I can be the mom I want to be for them. They are 13 and 14.  My girls like him.  He's calm and easygoing.  He wants to make a life for us.  All that.  In short he's great.  At the same time I still have my heart or head I'm not even sure anymore..in a past/ongoing relationship with ex.  It's almost been 6 months!  I have told my current bf too much about him.  I have left to stay at my dads to be able to contact the ex.  I emailed the ex the other night cause I was yet confused again..I know I need to grow up and worry about my girls first.  I'm trying.  I have vnot contacted him.  He was rude to my family and honestly there were some very unhappy times between us.  I compare these 2 men in my mind.  The ex is outgoing and fun.  Really the best things about him.  The man I am with is everything I want except so different than anyone else I've been with.  He's more quiet like myself and has been a homebody.  He's been single for 6 years.  Never married.  No kids.  But I see those as  ok.  Blah.  It's just a tough time all round but I keep going.  The stress of the ex on the brain though..my own doing.  I gotta gotta let that go.  Just venting really but any advise or a brick over the head would do too