NEVER keep it in . Are you still with her? I have let myself be angry over past 2 years, towards my BPD. I know everything about it and what I should do in this situation that situation, but dam it I am human and have emotions too! If she leaves because am honest or angry then so be it! Am prepared! Sounds like your distracting, you need to find something you like doing whilst just sitting and chill man you will burn out. Am learning to do this too