Yes, it is possible to have this going on with her. There are different disorders. One of them is called vaginismus. Another condition is dyspareunia These are treatable conditions. You may want to find out if she is willing to get some help with this. Depending on which disorder she may be suffering from, you can have her speak to a counselor, OBYN, hypnotherapist and other professionals that handle this such as sex therapists. First have someone evaluate her to arrive at the correct diagnosis and then follow up with treatment. Most important is for her to feel understood and supported by you during this time.