<human>: I [19,m] and my SO [18,f] have been in a serious relationship for a little over 3 years. We met while we were both in high school and have been together since. 

We moved in together about 6 months ago and have been having trouble since and even before. Most of the problems have been created because of me and I'm not the best with communicating. I like to smoke weed occasionally with some friends of mine and she doesn't like me doing that so I have done it less/ hid it. She also came out and asked me to see one of my friends that I smoke with less, which is frustrating because he's a pretty cool guy. 

The good times are amazing and I wouldn't give those times up for anything. But we've been arguing so much lately and getting mad and saying things we regret, that I worry if it's even worth it anymore. I really love her and I want a future with her, and I know she does too. But bickering so much and this age seems like a waste of time. Any thoughts or insights would be appreciated.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: been with my high school sweetheart for 3 years and since moving in together, arguing and being angry has become more common. Please advise.