<human>: Can you give me the gist of the text in a nutshell?

So we are together since 7 years and everything is good no problem of any kind, but because I was too proud (and dumb) I told her I slept with other girl before which is not true (only preliminary stuff).

Now that we've been together a long time, which I'm happy with, it happen that I feel some frustration because she is the only girl I slept with, and she chetead on me with a classmate 4 four ago. I forgave her but when the frustration come, it remind me about this and it get worse.

Since I feel that I love her, I'm afraid that in the long-term,  the frustration grow leading me to do stupid things.

Do you thing if I tell her it will help me ? Sex is great actually but I'm also worried she see me differently after telling it, like less manly. Does any of you learn that your SO was virgin long time after the beginning of your relashionship ans did it affect you ?

Sorry for the english !
<bot>: My gf doesn't know she's the only one I sleep with. It frustrate me, partly cause she cheated on me once. Should I tell ?