Need advice about baby father .

Briana • 7.19.16💙4.17.18💙3.21.21🤰🏼23 Years Old ❤️
So the father of my child seeks to keep thinking its okay to lie to me about small stuff sometimes even big stuff .. And i keep taking him back but i cant help it because he is my sons father and i do love him .. But hes been lying about not messaging a milatary recruiter back when he did ... And hes been talking about going into the military without even consulting me about it . Theres even times where hes lied about porn but theres no reason to go to the military he makes good enough money and i just dont undrfstand why hes so quick to leave his family when his son aint even here yet and i just dont understand why he cant stop lying to me .