From my boyfriends behaviour do you think he regrets being a dad with a woman he never loved? Thanks x?

Maybe. Or he could just be somewhat detached and irresponsible. Some men are perfectly fine with just every other weekend because parenting is work and cuts into their free-time. Some play the victim card too... "I was trapped", "I didn't love her", blah, blah, blah. They should know that you should only put your in women you would be okay with having children with... because it could happen. Sadly, a lot of men are desperate when it comes to and make stupid choices. Their fault.