I been trying to cheat, found out gf is cheating to an extent

Two weeks ago we got in a huge fight. Tried asking her for help with bills (we live together) she got mad and got aggressive. Was thinking about breaking up with her. She left the house but didn’t say anything. I have her location. She came back was just sitting in our lot.

She has been seeing a sick relative the past month consistently in the hospital in her home city an hour away. The night of the fight she was packing already before the fight to go again. I did not talk to her the whole time and she calls me apologizing about the fight and stuff. I still didn’t wanna talk. We got in another fight the day she was coming because she disrespected me (I asked what she had to eat and she said dick, said a s a joke. Who says that?

I was getting suspicious if she has been cheating. I found it odd the day before she went one weekend, she got her period. Then right before the weekend we fought, the day we fought we found out she had a yeast infection. Call me crazy but I started wondering if God, someone or something was making sure she didn’t cheat on me. Then she asked me if I had any dreams randomly. Sometimes I get dreams of something that is happening and it happens in life. She has been crying and sad saying she missed me so much because she felt like we haven’t seen each other much lately. Probably cause she been going to her city alot.

Anyways I decided to snoop today and went through her ig followers on my phone. I found a person and clicked on their profile. And I saw she left a comment on this guy photo saying wow with fire emojis. This was around the day she had came back home, while I was with my family member that day. Or the day after.

I feel really hurt. I been trying to cheat on her for a while but haven’t been successful . I’m thinking about kicking her out because it hurts and I’m upset. Am I crazy? What do I do? I feel like a hypocrite but it do hurt. Now I’m wondering if I should go through her phone. I have noticed her posting selfies alot lately. Like the past two months