Boyfriend Trouble!! Help???

(She Still Likes Him )Well my boyfriend's ex and i have gotten really close, anyway last night she sent me a message on fb saying billy (my boyfriend; her ex boyfriend) likes some other girl, well i was so mad i texted him and asked him about it. He zei he never zei he liked another girl and he only liked me. I still didn't believe him, so i told him i didn't know who to believe. So he got mad that i didn't believe him. Heather (My boyfriend's ex & the girl who sent me the message) zei u can even ask kabrey (Her friend) about it. So i did and she told me a totally different story of how she asked him and when he zei it. So I knew she wasnt telling the truth. I Believe my boyfriend know but he's still kinda upset that i didn't believe him in the first place. So today we were texting (Me & my bf) i was telling him i was sorry and that i shouldn't have trusted him. He forgave me. I thought things were back to normal, But he hasn't really been texting me today. Also just a few hours geleden kabrey (heather's friend) texted me and told me billy likes heather. I asked again twice how she knew and she told me two different stories again. I told billy about this today and he zei that he didnt say that and he was glad i trusted him, but he seems still kinda mad that i didn't trust him last night. He hasnt really texted me at all today!! Do u think he still is mad?? of is he gonna break up with me????? of does he just need some space??? of does he really like heather again?????
Do I Text him of give him some space??

Thanks :)