I think he's seeing someone else, help?

I have been wit my boyfriend for 2 1/2 years, I have never actually loved any one else. He is 47 & I am 34. He can be so lovin, but yet he can be my worst enemy. when I do go places, or go out & stay out a lil longer than I should have been, he is known to get scissors & tear my clothes, hides my I.d. from me & calls me names & tells me he’s gona leave me. Then he just ignores me for days, he makes me sleep on the couch. He watches t.v. all nite & foregets about me. I feel like t.v. is more important to him than I am. I hate this because I am yearning for his love & effection, but I think maybe he no longer loves me. He never hardly tells me where he’s going. Then when he goes to play horseshoes wit his friends & barbecue wit friends or family, he never invites my children & I. That makes me think that he is seein some one else, but he swears up & down that he will never cheat on me. I cheated on him in the past, I guess that’s why I think he is, or is going to. But I realized that no one is worth losing him over, so it’s gona be a year that I’ve been faithful 2 him. He brings this up a lot, & says he will never forgive me.