So we have been intimate like a few m,onths and my friend (which I have a crush on) is constantly with my cat playing and him and her they are always together when she comes round and he always runs up the sofa and rubs against her neck and she strokes him seductively, it is really annoying and I can tell that they are trying to make me jealous or make me aware of something.

What can I do and how can I stop myself from becoming jealous?

Thanks.