Jealous

Cheresh
Ok so me and my SO been together for 2 years & I don't have any kids but he has one and claims another one from. Previous realationship when they come around and I see him in "dad action" I can't help but to feel a little jealous .... Like I don't have any kids and you have two from a previous relationship like you all I got you get all my love and I wanna be your everything ... Idk y'all I feel bad even posting how I really feel ... Anyone in this situation or have been in this situation?