Would you do couples therapy with your SO if youre only dating (ie. not married)

My bf and I have had some problems and I love him but there’s some issues probably rooted in us individually that have been hurting our relationship and have been tearing down the trust I used to have in him (that I so badly want back) but we’re 21, been dating for almost 4 years. I feel like it’s weird bc we’re not married and I feel as though if we need to go to therapy already then what’s the point in continuing? But I wanna hear other perspectives.

Please and thank you