I can't believe I'm in this situation...
I'm 21 and have been with my boyfriend for over a year. We genuinely have a wonderful relationship; we're very very happy together, he constantly tells me how much he loves me and makes plans for the future. I'm away at university, so we can't always see each other as much as we'd like, but we spend most of our time together when I'm home, and things - I thought - were amazing.
I admit that I was being nosy, and I shouldn't have done this, but today I logged into his Internet e-mail - not for any particular reason as I felt I trusted him implicitly, but genuinely just being nosy. And I know I shouldn't. But there was an e-mail there, from today. He'd signed up to a dating site. And I looked at it. He's filled in a profile which describes him as 'looking for some fun'. He has ticked two boxes under 'looking for' which say: 'I'm up for some chat and flirting. I want to contact new people and see where it goes!' and ''A date! I'm free this weekend. A meal and a drink with someone new would be perfect'.
I am shaking from head to toe. I feel sick. This may seem so silly, but I have an amazing relationship with this man, and have done for over 18 months. He's told me I'm the love of his life and he wants to marry me. What the hell is he doing? I don't know if I can just let this go, but of course, how can I say I found out? Please help. I know this is stupid but I feel like my world is crashing down.