Hello; thanks for the query & I am sorry to hear your problems. Usually relationship problems start to occur when we start taking our partner for grantd & stop considering, caring for each others problems & weakness. Plus use of harsh words, criticism (which both of you are doing repeatdly) only compounds the issue further. Hence in simple words, you 2 need to sit down & talk calmly with each other preferably in presence of expert mediator like a Psychologist, marriage/relationship counsellor where both of you with help of expert help can realise each others strengths (assets) & weaknesses (liabilities). Ten you can move on to cover these assets/liabilites to have a meaningful relationship once again. When done in supervision; this type of talk therapy (Couple therapy) is successful & I am sure you can soon get back to your old ways of love & harmony. Good Luck