relationshiphelp

i have been with my partner for 3 and a half years. during this time we have lived together for all of it. 95% im so happy with him and feel loved and support and cared for, but the other 5% is ugly when I need support the most. The underlying issue is that we don't see eye to eye as to what's appropiate behaviour with the opposite sex. All our fights have been on this and we recently had a big one in which made me really upset and feel I need to reevaluate our relationship.
As an example of things he has done to hurt me include flirting with girls such as: (p.s these all happened once and at different times) taking pictures/adding girls on insta/getting their number (as a joke), talking to his ex (even called her). this has happened over the stretch of our relationship and when I got upset from these events he would blame me that im jealous and oversensitive and what he does is completely normal, then he gets his friends to back him up and agree. recently i found out he had been messaging a work colleague and borderline flirting which he didn't tell me. what would you guys you if you were me? do you think I should leave him or give him another shot? #Relationships #Relationshipadvice #relationshiphelp #needadvice #Love #breakup #help #Advice #loveblind #relationshiptroubles #Relationshipissues

I struggle heavily with depression/anxiety/suicidal ideation and unfortunately, I self harm. my boyfriend, during a recent argument, told me “I’m not getting involved in your shit.” I was dumbfounded. He doesn’t want anything to do with my struggles with mental health. we’ve been together for 3 years. I wasn’t always the model girlfriend, but I love him. I just can’t help but feel betrayed that he won’t even attempt to understand my mental health struggles. I want to leave him, but I’m afraid of being alone. I’ve grown so accustomed to him and our routine. that I literally don’t know what to do anymore. anyone have a word of advice? gone through something similar? I’m really lost and I’m losing my mind over it. #Relationships #Depression #SuicidalIdeation #Selfharm #relationshiphelp