Starting Over😭😭

Sooo basically I've been on and off with my guy for 5years. Honestly I'm tired of going back and forth. It's like if there's ever a disagreement or I ask him anything (if I think he's being sketchy) he becomes dry and we don't talk for a while...basically ignoring me but when I say something he just says he was giving me space. Anyway fast forward...I was at his house earlier this week and found lipstick stain and a hair that is definitely neither of ours. He swears no one else has been over there so what other explanation is there. Ugh! I just hate this crap and honestly have NO energy to start over. I'm 31. No that's not old but idk how to even get out there anymore and it doesn't really seem worth it because all people want to do is fuck around. I want more...but idk it's realistic. Just venting....😭😭😭