My boyfriend watches porn but is too tired for sex with me

ive been with my boyfriend for over 2 years now and i basically live here most the time i might go home home once every 2/3 weeks. Although we spend all this time together and he works alot hes always too tired for sex but then as soon as i go home he watches porn, we may have sex about once every week and half, im 28 hes 37. I feel like hes just not interested because he has to use viagra with me but not to watch porn? i dont get it and then if we do have sex it has to be in front of a mirror? its been like this for about a year and half now, what is it? what do i do?

This is a good question for the guys. #7 seems awfully young to HAVE TO use Viagra.

Susiesqq right that is what leads some men to that anyway because it has happen to my husband before and this is how I came on forum to see if I can see someone to help and God sent me an angel to come and wipe off my tears. He sent me some meds for my husband and he took the meds for just a week and his body system back to normal and he can perform on bed now more than the way he was. And since then have been enjoying my husband. If you don't mind you can get back to me maybe it can work for you as well.