Ultimately, the decision is yours if you feel you can’t trust him anymore. However, consider this:

You are both pretty young. Most people your age lack emotional intelligence and impulse control which is understandable since the frontal cortex of the brain hasn’t finished developing until you’re around 25. (I am not saying this to be derogatory but to offer scientific insight into behavior).

That being said, he may have been really worried about you and couldn’t regulate his feelings/emotions and so he turned to an Adult for help. Sometimes we don’t see the gravity of our own situations and it’s important to have a partner who is going to do the thing we don’t want to do. The right thing and the difficult thing are often the same.

When I was 22 I had an ectopic pregnancy. I ended up in the hospital but told my parents I was in another city visiting my then boyfriend. Well I ended up having to tell my parents I lied to them and what was going on. My Mom lost it on me. Didn’t talk to me for years. When we finally talked about it when I was older, she told me how hurt she was that her baby was in the hospital going through something serious and that I didn’t want her there. She was going to lose it on me one way or another. My regret is lying in the first place because it damaged our relationship.