I need advice or someone to talk me out of my issue...

So my bf and i have been together for 2 and a half years and in the beginning we wanted to be upfront with each other and had thr conversation of intimacy and pictures. Being young at the time we both said that we were virgins and had never sent anyone intimate nude pictures of ourselves.... well tonight I found out that before we started dating he sent pics to 2 people. This made me really upset. I mean the thought that we BOTH were experiencing the whole sexual stuff for the first time was really special and comforting to me and I feel really disappointed, and betrayed. I feel really stupid for feeling this way and getting upset but I really am.. someone tell me how to feel😢 I feel stupid for thinking he would do things differently than most guys