A few weeks ago I found an unopened box of Tadalafil. I googled what they were for as I have never heard of them. Then this week I have found just 1 of those tablets. We haven’t had sex in a long time so if he isn’t using them on me then who is he using them for? I have read some men use them for the gym but be doesn’t do that either. We have been together 13 years and have children. I feel he is hiding something? Please give me so thoughts….