Whats my problem?!?!

I'm at my friends sons 1st birthday party and I'm feeling a bit blue. I done a stupid thing in the early hours of this morning. I text DB a horrible message because I looked on his new Facebook page and saw loads of stuff I didnt like. Some of his statuses were quotes that seemed like they were related to me or us and our relationship (paranoia maybe???) and he's been 'liking' a lot of this girls photos. (this girl Julia, is one who was in the background willing to marry him so he could stay here)
So he stopped contact with her because of the way I felt but looks like now he is all over her page.
Anywho I sent him a moody text about him not returning my calls because he's busy sweeting Julia and how IM not going to bother with him anymore. But I also feel like a hypocrite because not 2 days ago was I having sex with someone else. So Im basically being a cow. I guess if Im having sex with other people then he can too, and Im not saying that he is unless she's been over there, but still. Oh I dont know, someone shoot me and get this over with.