Advice

My partner of almost 7 years is fantastic he is a great dad very kind and willing to do anything for anyone but then there's the other side where he is extremely jealous and can be a really awful liar when I try talk to him he denies it ..Like this is not all the time its like an episode that can last a few weeks but only happens every so often..We are TTC no4 I love him dearly but sometimes I wanna run for the hills