Could it have been the condom?

Losing an erection when putting on a condom is something that happens among men, probably more commonly than you think. One explanation for erection loss could simply be the process of having to change one’s focus from the emotional excitement of sex to a more cognitive, rational process of safer sex. Let’s face it, condoms aren’t the most pleasant things and can remind us of infections and illness. Condoms reduce sensation and can be awkward to use.

After you lose your erection the first time, anxiety can mount and further exacerbate the problem, sometimes referred to as “performance anxiety.” Simply anticipating putting on a condom can cause someone to lose their erection. Resistance to condom use can arise from previous experiences of erection loss when wearing a condom. To some guys, the shame and embarassment experienced by losing an erection is much worse than having unprotected sex and not losing an erection. Some guys may even think that there is something wrong with them.

they had been together like with each other for 4 hours so I dont think the masturbation thing is true, but then after that the erection came back? and he really wanted to do it, then refused without the condom.