My bf and I both have friends of oposite sex and its never been a problem but a few months ago this other girl came on the scene, no one actually knew her except from him, he said she was a girl who stayed near him when they were kids and then she moved away and he met her a few months ago on a night out and decided to keep in touch.
I have met her a few times when she has came to nights out with us and our friends and she clearly does not like me, I made an effort with her to begin with but we just didn't get on so I tried to not be in her company.
He has lied about spending time with her and when I ask him about it he said its because I don't like her so he didn't want me giving him grief for seeing her. A few nights ago I found a packet of condoms with some missing that I know we didn't use, when I asked him he said he had used them while masterbating to save mess and he said that I'm paranoid. I have never ever not trusted him before but I think somethings going on with this girl but what if he's right and I am just paranoid