How do I confront him about this situation ?

I have been dating this guy its been 3months now from the past we are back in eachothers lives. He has a daughter and oviously EX BABY MOTHER. She hates me and cant stands to see me therefore she does not know me and him are dating howver his parents and siblings, cousin... know me very well threw my family and he has broughten me over several times his friends also all know me as his girlfriend. We;ve both been threw alot and gotten hurt in the past so were taking it slow and well see where time leads us. He has told me he loves me it slipped out and he took it back but now he has also told me and not taken it back. I told him i wanted time apart to think about where were headed and he said he wasnt going to let me go easily because he doesnt want to loose me just give him time. But it has been 2 times he went to his baby mothers house and lies to me about it, im not sure if he went there but he usally always tells me where he goes and if i call hell tell me instead he saids call you later so i was mad and i told him im tired of lies theres no reason to lie but in reality i do not even know forsure if he was there. He saids he doesnt love her no more and its not like that but than why would he lie about being there ? :S Maybe to avoid a problem but in reality there is no reason for him to be there if he has hisdaughter on the weekends and if he wants her he can just take her out withou staying there. I asked him on text message where he was and why he lied to me and he respnded ill call you soon than he called me and he didnt adress the situation at all! He acted like nothing was there and even today sooo now I dont know how to confront him ? ? please help i know this is long but i would love an answer on how to bring it up today.