I may have a little insite in this matter.
Wife and I have had sex 6 times in 5 years.
I filed for divorce, we are now working on things and things are shaky at best.
Anyway, It was easier for me to hit a porn site than it was to go upstairs and deal with her. There were several things that had not gone right in our marriage, and I blamed her for alot of them, not because they happened because she had taken a hands off approach and i felt i was fighting the world on my own. We had a baby, she lost her job, we were forced to sell our house, moved out of state, she sat on unemployment while I busted my a**, raise the kids while she watched t.v., the list goes on and on. To get to the part your interested in.
We called off a divorce and agreed to work on things.
We had sex the night we called it off and nearly every day after for about a week. I didn't ejackulate most of the time, we would have sex until i got tired and that was that.
My problem is if i dont think she is enjoying it then i don't enjoy it. One of the biggest things in my situataion is that I want my wife to want me, if she is just doing it to placate me then I would rather do it myself.

So my question to you is are you both enjoying it?
It may take some time to get back on track so i would give it some time and don't take it personally.

Hope this helps