Search Results: should i dump him

Cutting to the chase.
She still has contact with her ex. I don't. Never talked to them since my breakups with them. Its honestly keeping me up at night. Especially knowing she's In the same town as him. Should I end it?

She is no longer having sex with me as much as she used to. She will often say that she's "not in the mood" or "doesn't feel like it."
We used to have it a decent amount of times like a few times a week. Now, it is only once or twice if I'm lucky. Should I break of with her and find someone who will give me sex?

My girlfriend and I have been dating for a few years off and on. But now she asks me dumb questions like what are you playing fortnite or call of duty and it would be far cry literally on my screen.
And then she would ask me stuff like what did you eat for lunch every day and it’s annoying asking me the same questions.
And she would send me photos about Beyoncé and videos of her because she is obsessed with her and has her profile picture online of her. Ya really annoying and she never uses her own photo.
Before the weekend began she told me she was going to stop texting me this weekend because her mom and family were doing a no tech weekend together and I was like okay cool. And yesterday when I checked her social media page she literally was posting some photos yesterday. And not to mention I’m 21 and she’s 26.