Congrats on day 18, Jerry! Good job on averting from following through on the edging urge, or the internet searches. That's when I know I've gone to the 'edge of the cliff' of the porn-pit, when I start doing internet searches...!
As long as you don't repeat it, it won't become a habit... Keep going!
For the wife thing (ha!), it may be a much needed outlet for her right now...? Maybe just don't make a deal about it, as you seek your healing. My wife and I have been challenged with sometimes a month in between sex, but when it gets there, God is faithful that whenever I pray that we have sex that night, she does initiate it! That's how we get there. I do want 1x a week is ideal for us...
Praying strength and encouragement for you, brother! God has forgiven you of all sin, brother, and He has sanctified you.