Relationship

I been with someone for 8 years he left me 8 months ago and it’s so hard to move on because he acts like he still cares I really don’t know what to do. He has a girlfriend now and everything. I feel like she only came into play to cover up the breakup I really don’t feel like he loves this girl. I don’t wanna keep going thru this because it hurts me even more but it’s so hard to let go when he’s still in my life. I tell him all the time to just cut ties with me n move on I don’t want or need u helping me u should just be here for your son