Past causing some issues

So I was only in 2 serious relationships in my life. My ex and my husband. My ex boyfriend was my senior year and the year after I graduated.

I lost my virginity with him and thought he was the one for me. He was a little too forceful with me sexually on a few occasions.

Well now many years later that has caused issues with my husbands and my sexual relationship. My husband loves me to use my mouth. Andnmy ex forced that on me so idk I just overall dont enjoy it.

I HATE talking about what went on with my ex and I find it hard to tell my husband (not because he isnt understanding) its strictly bc I clam up about it all.

Any ideas on how to get past this?