With respect to the leep procedure, they will do their best to remove all the abnormal cells from your cervix, but you will need to go back for a few follow-ups in the following months to check. I definitely recommend bringing someone with you (who you trust to be supportive) for moral support
With respect to HPV infections, the best thing you can do for yourself is to boost your immune system (you own body's defences are the best way to fight infections).
Here are some ways to boost your immune system:
We all know that eating well is one of the cornerstones of great health, but what does that mean exactly?
(1) Eliminate all refined sugar (white/brown sugar, corn syrup, etc.), and refined foods i.e. white pasta, white rice, white bread, etc. Instead, always opt for whole grain versions.
(2) Make sure you're eating enough protein - opt for chicken, turkey, fish, legumes (like beans and lentils) and avoid red meat.
(3) Eat your vegetables!!! Aim for 8-10 servings of vegetables and fruit a day (fresh or frozen). Remember that 1/2 cup = 1 serving, so it's not as hard as it sounds.
(1) Exercise! Another great way to boost your immune system. Atleast 30 min of brisk walking a day is a great way to start
(2) Relaxation techniques: weather it's yoga, meditation, reading a favourite novel, etc. reducing your stress is vital to health. Chronic stress actually lowers your immune system.
(1) Probiotics - these "good bacteria" help rebalance your gut flora, and considering approx 70% of your immune system is located in your gut, is a great way to help boost immunity (also helps improve digestion).
(2) Papillex - a supplement specifically for hpv, it contains some amazing herbs and extracts like reishi mushroom and astragalus that have a ton of research backing up their efficacy (I absolutely love this product, it's worked wonders for me).
With respect to you and your boyfriend: difficult situations, especially concerning health, can really test a relationship. At this time, support is THE thing that you need and the fact that your boyfriend reacted the way he did is a serious red flag. No one can tell you what to do (i.e. whether or not you should stay with him), but you need to have a serious conversation with him and really ask yourself if this relationship is good for you.
I really hope this helps and good luck