Fallen for an ice addict (meth) is it normal to want to stay.

I have recently found out the (not official boyfriend yet) perfect man that swept me off my feet for 8 months is an Ice Addict Tweaker. Like most addicts, a damn good liar and ive noticed he has the uncanny control of never letting his loyalty to himself slip ie.. wont address issues, waits to be questioned (i feel this is a good way of him keeping things in) He got so bad he hospitilised himself because his body couldnt take the chemical abuse, when he was out of it in hospital i went through his phone as i knew something wasmt right! This is where i found everything to expose him or his other world i should say!
I had known him to use in the past and it didnt bother me as he said he'd dealt with it (as i did not know what i know now about addicts!) It still doesnt bother me, that is of coarse, he regains control!! (is it normal to even think that) Is it possible for him to do so? I have been known to smoke the shit but i would never smoke on a regular basis! Only to have a little "fun" occasionally through the year!! But ive never done it with him, and i was obviously very uneducated on the culture of the drug etc!!
I noticed when i first met him he had terabites of porn n thought that was strange but brushed it off as he has terabites of normal movies too! I also noticed he looks at other women like meat! When i went through his phone i also caught him out trying to organise descreete meetings (unsure if any have taken place) on multiple dating apps etc (he told me he loved me and wanted to start a life with me and had deleted all that) with not only every girl that would talk to him but also expressing bi curiosity towards couples... I was pissed at first but now i see it was the drugs!! But at the same time, why put so much effort into us!! I am extremely open sexually, why did he not want to loose his inhibitions with me?? Is it a respect thing?
Ive made the obvious link, via behavioural traits he has shown and snooping ive done (found anal sex toys and dildos in a cupboard in his room but he hasnt shown me and he knows i love to play) , that i feel he is a classic closet Meth and Porn Addict, quite possibly a sex addict as well!
What does he need me for?? We were having great sex and lots of it! If a sex addict needs and craves variety, why rope in one woman and put in effort!! Especially since seeing now sex on tap n pnp is quite plentiful, wouldnt it just be easier to be single rather than hiding everything
Can he love me while having these addictions??

I have read its a long road to recovery especially with co-addictions! I initially confronted him in an uneducated manner (told his dad and we both set him up to prove he was lying to us and then come down like a ton of bricks) and now i feel like i could be seen as some what untrustworthy to him now!
I know he ultimately has the choice but i didnt realise the impulses this drug could make you act on, i really was sheltered to this world and how to approach it!... I was old school friends with him before we started seeing each other (we are both 30) so i want to help him! Even if nothing eventuates from us as it takes a lot to come back from this, he has the opportunity once to prove himself to me!! At the same time i love him, i hate him for having this secret world!! I want to know everything! Weird sexual fantasies, what impulses hes acted on, how much he was using how often, FOR HOW LONG (never get a real answer) how many people has he been with, not just in general, but behind my back as well... I feel if he is able to trust me and open up to me about it all as i am not wanting to be judgemental and i have an open mind to anything, with good understanding, and show him that he doesnt have to be embarrassed about anything! What he has done on this drug does not define him! But nothing phases me except for the unknown! And i he is a big mystery to me at the moment!! I feel if he could open up we could be closer and recovery might come easier. They say he'd still be using until he seeks help (he hasnt expressed going to a program or admitted anything really and i havent mentioned my thoughts on the porn and sex so he wouldnt just bring that up) ... is it likely he is still using a little to fight off cravings and fool me into his recovery efforts or is it possible for an addict to control once damage has been done and hes exposed??
His sores are healing, can that happen if use has been backed off?? Does the lying stop once the habbits are dealt with? Argh, this wasnt meant to be like this!! I wont wait forever but i feel everyone deserves a chance, it just sucks that i know his last girlfriend gave him the same chance and he blew it!! Am i different?? Can someone give me insight!! I just want to see what his world was like and how bad he got/is, as i just want see what sort of man i could be dealing with after possible recovery!!