I have the same problem. I feel nauseous when my boyfriend touches me. I love him and I didn't used to have this problem with him. I found some good articles on the internet about sexual aversion. Try looking up sexual aversion. There are some good tips to regain control and maybe even try a sex therapist. Hope that helps.
Or shes asexual...
You could be asexual since you like certain parts of intimacy like cuddling, hugging and more non sexual bonding activities