I forgot the name of this manga I read a long time ago and I am looking for it again.

It is a about a girl, the MC, who met a guy who helped or consoled her. They fell in love with each other and ended up dating after a while. The mc is really close to another guy who has a girlfriend. The mc and the guy friend somehow witnessed a kiss between the mc?s boyfriend and the guy friend?s girlfriend. The mc, then proposes to the guy friend that they should like cheat back and have a date or something. At the end the mc and the guy friend fall in love with each other.

Is it Nisekoi Doumei?

Yes that one! Thank you so much!