Hello and Thank You to all of you!
Mrs. CG ... honestly we didn't know anything was wrong either. He has been very open with us and accepting of our suggestions and help. He had not been posting a lot lately, I'm sure most of us were thinking he was too busy with work and the house... but that he was doing well. So please.... let go of the guilt of not knowing.
I cannot believe how you were treated by "friends" and his coworkers! Guy always said you were a strong, smart woman... that clearly shows in how you handled this situation. Even to allowing yourself time to cry out the frustration and fear and then get back on the trail. I cannot imagine how awful that was for you. You did really well. I'm impressed. So please.... do not pick up the guilt those people tried to lay on you. They are not only insensitive, but wrong! Needing to be split up because of work, houses, illness... whatever. That's just a part of life. Lesser people let it destroy them.... I can see you are not going to let that happen and neither will Guy once he gets stabilized again. And he will. In my opinion, there is nothing greater you could do for him than get rid of that house! And you did!
I'm afraid Hugs is right about Guy's questioning your love... there is nothing you can do to keep him from questioning, but consider this. From his posts we know that Guy loves you deeply. He also knows you love him deeply. Normal relationship doubts, turn into monster fears when his illness kicks in. That's why he is here trying to get better. And he is getting better.... we all have these setbacks... you can almost count on them happening at certain junctures. My husband of 10 years was very insecure in our relationship for years and years... kept comparing me to his previous wife who left him. It has gotten better and I can share how we managed to do that with you and Guy another time.
Your job right now is to first take care of you. Do that by dropping that guilt you are carrying and refusing to pick up any more. Guilt doesn't help you or Guy. Know that you are doing the best you can and it is good enough. Well, actually, amazingly better than good enough! But if you can't see that, at least remind yourself you are doing the best you can. Guy will get the help he needs at the hospital and will be home... really home with you in no time. As another member says, I know this from experience... I've been where you two are (oddly in both positions at one time or another).
We are here for you.
What a sweet, gentle man you love and we have had the privilege of getting to know here on this site. How wonderful that there is this trust between you. Thank you for letting us know what happened. Please do send him our love with cyber hugs. Sometimes being in the hospital is just what you have to do to stay safe. It's OK. I'm so glad you were able to go to him and get the house sold and everything. Bless you! Bless you both! 
