Sex and Porn.

So my fiance and I have been together for 3 years we have a son who is 8 months old. My fiance works on the railroad where he is usually gone 6 weeks only home for 2 weeks... last time he was home he only had sex with me twice in the two weeks. Now he's been home for a week and has had sex with me once.... BUT, Its it secret he watches porn when he's gone and has a fleshlight to help him out. I even looked at the history on his phone and saw that the last time he was home he watched porn while I was at work... he doesn't call me when he's gone for phone sex or ask for pictures.. and he watched porn while I was at work....like he couldn't have waited til I got home ? I'm such a horny person I would have sex alllllll the time if he'd let me.. but getting him to have sex with me is like getting an elephant to sleep in a camping tent.. he's NEVER in the mood.. so he says.. I even got to the point where I was so tired of making moves and getting turned down that I made a habit out of straight up asking if he wanted to have sex instead if even trying... he asked me to stop doing that because it made thing akward.. I mean for goodness sakes like I said we've been together 3 years and he has only eaten me out twice ... and only for a minute or two but always expects me to put his dick down my throat .... I guess I want advise or maybe I'm just venting... like is it me? Or is it him? Is the porn interfering with our sex life? Has anybody ever been in the same situation ?? TIA😗