<human>: Give me a shortened version of the text

Hey guys,

during the train ride back to our families (we come from the same area) my girlfriend and I just out of nowhere were talking about threesomes. 

She then told me that last year she once had a threesome with two guys. I, with having a history of cheating (family and personal), feel very dissapointed about that, because I just couldn't and wouldn't imagine my little girl getting pounded by two dicks.

I don't know how to react. I deeply love her and really want to stay together with her for a long time, if not ever. But I feel really dissapointed... 

Please help me...
<bot>: My girlfriend told me she was getting pounded by two dicks a year ago. I feel dissapointed and don't know how to react.