Ladies this morning me and my mother argued about me not keeping communications with my step father…

Ladies this morning me and my mother argued about me not keeping communications with my step father ( has been in my life 20 years)... they divorce last year and he brushed off like we were nothing got a new gf etc. He says hi every 3 months i see him for a bout 15mins then he's gone that's about it but she mad at me because I'm not chasing him am i wrong for that.

p.s he doesn't even know I'm pregnant. not that he'll care anyways.