Drought 😐

My boyfriend and I have had GREAT sex our whole relationship. Well we had a slip up and I took a Plan-b. Ever since then our sex has went down hill, and there is ALWAYS an excuse. I'll be ready and give him head to get started (only way he'll last longer than 2 minutes) he'll cum and then when we try to have sex he just shuts off. His excuses are that he's tired, or he wants me on birth control, or we're never alone and it's like a new excuse every day. So I got on BC and it's still not good enough! Helpppppp 😩