Staying UP

My boyfriend and I have been together for over a year now, and prior to that we had a sort of on and off dating relationship. While we were dating sex was great and frequent. We each enjoyed giving and receiving, and we were both happy at the end. However in the last year, since we’ve become exclusive and pretty serious sex has lost it’s sizzle and one of us is usually left unfulfilled at the end. He has also showed reoccurring difficulties with staying hard. We talk about it and he reassures me that it’s not me, or my fault. But how do I help and what should I do. Also I think I’ve maybe overwhelmed him with baby talk lately, could this be affecting his performance?

Please help.