Low sex drive

Hey ladies, I need some help.

Me and my boyfriend have been together for about 1 year and a few months. We have had a very active sexual relationship and never not been in the mood. But recently it’s like neither of us really care for it anymore. He doesn’t get hard for me anymore and I don’t ever feel it either. We both want to but every time we try it never works out in the end. We haven’t even touched each other in about 3 weeks. Can anyone give some advice!?