What exactly is hpv slil, and should i be scared?...can and will it go away or is it lifelong?

Follow up: That is an infection with one of the Human Papilloma Viruses. It will usually go away due to your own immune system in about 1 to 3 years. If you do the recommended followup (paps, exams, colpo, etc) as recommended by your doctor - any problems due to the virus will be detected and can be treated to prevent the development of a high grade dysplasia or a cancer. Do your follow up.

Abnormal Pap smears: I think you mean LSIL which is Low Grade Squamous Intraepithelial Lesion. The HPV virus is the most common cause of this abnormal pap finding. LSIL can go away on its own, but must be followed closely to be sure it does not progress toward cervical cancer. Colposcopy is usually used for follow up to the initial pap. Usually continue annual paps if it goes away.