Sometimes it feels like I’m on the back burner

My husband and I have had plenty of conversations about sexual stuff . He told me all I have to do is ask for it. Well last night I got him off and then our son woke up so I got him back to sleep and asked if He could get me off, he said I told you that I need to do you first because I don’t feel like doing anything afterwards …. But if he would’ve been interrupted with his he would’ve been upset and it’s very rare for me to even want anything sexual now a days