Should I Stay Or Leave? I'm Not Sure If My Man Is Serious

 

                      Been seeing this guy for about 4 years now on and off. At one point we even lived together but due to unforeseen circumstances we had to split. He has told me that he loves me very much and that we will be together properly when he gets his own place and he is financially stable, however i have a niggling feeling he is seeing other girls too. 

                 I have asked him about marriage and he has told me he does not know where we stand on that issue. Each time i tell him its over, he comes back sweeter than ever, talking about babies (im broody right now) and about our future,making me think that a proper relationship is now in place only to find out a few months later he is having second thoughts and never intended to have a proper relationship ie make it known to the world we are together.

             My friends say that if he is seeing someone, it will be revealed in his mobile phone and that a good sign to tell if he is cheating is if he carries his phone with him at all times. I have noticed he keeps his phone out of sight whenever he comes to see me. He treats me very good almost like a wifey yet whenever i want to ensure he is committed to me, he suddenly comes out with excuses. Should i just forget him or am i being too picky?