So I'm a 37-year-old guy. I have been porn and masturbation free for nearly 70 days. I have been seeing a girl for the last two months and strangely I was having strong erections just holding her hands or kissing. Yesterday we finally slept together, and at the moment I was about to penetrate her I went completely soft, and not only that, but I also ejaculated immediately. The night was a complete disaster. I'm afraid she may dump me, how can I overcome this? I feel like a complete failure. Has anyone experienced this before? Should I take a boner pill?