make him fall back in love ?? is it possible?

what are some ways I can make him fall back in love with me ? it all started with an argument and I said I was going to text my ex then he said some stuff and. I said some stuff and boom after a week of arguing he told me he didn't love me . for the past two weeks we been on good terms having sex and always together and having family time (we have a baby together) it's been about 3 weeks and we have been good but he still hasn't told me he loves me or care anymore tips? and I'm still the only person he talks to and be around every day I've been spending the month with him at his house