I need help😐

Okay so me and my boyfriend have been dating for 7 months and we started having sex the 4th month and I found out month 6 that I actually took his virginity. Anyways yeah when we used to have sex he would cum in 5-10 mins sometimes sooner. We used a condom for the first few times then we stopped and he started cumming faster. Something happened between us and we broke up for about 3 weeks and then we got back together. We had sex 3 times since we got back together and we've been using condoms but he takes forever to cum. Sometimes I just stop cause I be tired. Is it the condoms or am I just not doing good anymore? 😒