I'm a 21-year-old guy and I'm struggling to find reasons to stay in my relationship with my 19-year-old girlfriend.

My girlfriend and I have been together for about six months, and for the most part, it's been quite good. She shows me a lot of affection, and we generally get along well. However, three days into our relationship, she sent a bikini photo to a group on Snapchat that included both girls and at least one guy. That guy saved the picture and complimented her, but she didn't respond. It wasn’t until about two months later that I found out about this, and it really upset me. I also noticed she had many guys on her Snapchat that she communicated with. When I expressed my discomfort with the situation, she removed them all. Moving past this has been challenging for me, and I find myself questioning her choices and values. Another issue is that she presents herself as a deeply religious person who loves God. She has biblical quotes and highlights on her Instagram about her faith. Yet, I recently discovered that her religious beliefs are superficial; she seems to be religious mainly to secure her place in heaven. She once told me she lost her faith during a wild phase before we started dating, but she continued to post about her love for God, which feels contradictory. While she is genuinely sweet to me, she can be quite judgmental about other girls, which I find troubling, especially given her own past. I’ve pointed out that her comments about others are unfair since she has behaved similarly at one point, and I think she’s starting to grasp that perspective. It hurts to feel that even though she professes her love for me, she’s not fully open about her thoughts and feelings, while I strive to be transparent with her. It seems like she tried to portray herself as the ideal girlfriend at the beginning of our relationship, but once we were together, her flaws started to emerge. She insists that I am her soulmate and that we’re meant to be together forever. I want to believe her, but I can’t shake the disappointment from the past six months. She’s promised to change and improve things, which I genuinely think is possible, but I’m struggling to move past her history and her lack of honesty with me. Should I set aside my feelings and allow her the chance to improve, or has she crossed too many boundaries and revealed her true self?